Tall Ships Sail and Parade into Chicago

377485 03: The Highlander, a103-foot-long grand bank topsail schooner from Nova Scotia, Canada sails into Chicago's Navy Pier August 31, 2000 as she participates in a "Parade of Sail," kicking off a Labor Day weekend event titled "AT&T Tall Ships Chicago." The Picton Castle, built in 1928 is dedicated to sailing around the world and delivers much needed supplies and trade goods to remote tropical islands during its voyages. (Photo by Tim Boyle/Newsmakers)

Tall Ships Sail and Parade into Chicago

377485 04: The Nina, a 72-foot, three-masted 15th century caravel replica ship sails into Chicago's Navy Pier August 31, 2000 as she participates in a "Parade of Sail," kicking off a Labor Day weekend event titled "AT&T Tall Ships Chicago." The Picton Castle, built in 1928 is dedicated to sailing around the world and delivers much needed supplies and trade goods to remote tropical islands during its voyages. (Photo by Tim Boyle/Newsmakers)

Millennium Park Opens To The Public

CHICAGO - JULY 16: Chicago residents and tourists explore the Pritzker Pavilion designed by famed architect Frank Gehry in the newly opened Millennium park July 16, 2004 in Chicago Illinois. The park which covers just over 24 acres cost nearly $500 million to build. (Photo by Scott Olson/Getty Images)

Millennium Park Opens To The Public

CHICAGO - JULY 16: Children and adults explore Crown Fountain sculpted by Jaume Plensa in the newly opened Millennium park July 16, 2004 in Chicago, Illinois. The fountain reflects the faces of 1000 Chicagoans.The park which covers just over 24 acres cost nearly $500 million to build. (Photo by Scott Olson/Getty Images)

US President Bill Clinton(R) enjoys some food from

CHIGAGO, IL - JULY 2: US President Bill Clinton(R) enjoys some food from a food booth at the Taste of Chicago Fair in Chicago, Ill 02 July. Clinton visited the fair after attending the 21st Constitutional Convention of the National Council of Senior Citizens. Clinton is also scheduled to attend two political fundraising dinners in Chicago. (ELECTRONIC IMAGE) AFP PHOTO Luke FRAZZA/fraz (Photo credit should read LUKE FRAZZA/AFP/Getty Images)

Boats pass under the Michigan Avenue bri

CHICAGO, UNITED STATES: Boats pass under the Michigan Avenue bridge 27 April, 2005, heading to Lake Michigan via the Chicago River. In 1673, French-born Father Jacques Marquette, a missionary of the Jesuit order, and Canadian explorer and mapmaker Louis Jolliet were the first Europeans to view the land on which the City of Chicago was to stand. AFP PHOTO/JEFF HAYNES (Photo credit should read JEFF HAYNES/AFP/Getty Images)

Extreme Heat And Humidity Hits Chicago Area

CHICAGO - JUNE 24: Children and adults play in the water at Crown Fountain in Millennium Park June 24, 2005 in Chicago, Illinois. With near-record high temperatures predicted in the Chicago area for today, children and adults sought relief from the ninety-plus temperatures any way they could. (Photo by Tim Boyle/Getty Images)

Extreme Heat And Humidity Hits Chicago Area

CHICAGO - JUNE 24: Children and adults trek through the water at Crown Fountain in Millennium Park June 24, 2005 in Chicago, Illinois. With near-record high temperatures predicted in the Chicago area for today, children and adults sought relief from the ninety-plus temperatures any way they could. (Photo by Tim Boyle/Getty Images)

Extreme Heat And Humidity Hit Chicago Area

CHICAGO, IL - JUNE 24: Cezar Martinez, 10, cools off in a fountain at Navy Pier June 24, 2005 in Chicago, Illinois. Temperatures in the city reached into the mid-nineties falling 1 degree short of a record. (Photo by Scott Olson/Getty Images)

Extreme Heat And Humidity Hit Chicago Area

CHICAGO, IL - JUNE 24: Jose Rivera, 3, cools off in a fountain at Navy Pier June 24, 2005 in Chicago, Illinois. Temperatures in the city reached into the mid-nineties falling 1 degree short of a record. (Photo by Scott Olson/Getty Images)

Extreme Heat And Humidity Hit Chicago Area

CHICAGO, IL - JUNE 24: Children cool off in a fountain at Navy Pier June 24, 2005 in Chicago, Illinois. Temperatures in the city reached into the mid-nineties falling 1 degree short of a record. (Photo by Scott Olson/Getty Images)

Extreme Heat And Humidity Hit Chicago Area

CHICAGO, IL - JUNE 24: Children cool off in a fountain at Navy Pier June 24, 2005 in Chicago, Illinois. Temperatures in the city reached into the mid-nineties falling 1 degree short of a record. (Photo by Scott Olson/Getty Images)

Chicago Holds Annual Gay Pride Parade

CHICAGO - JUNE 26: A gay couple strolls along a path of rainbow colored confetti in the city's gay district during the 36th annual Gay and Lesbian Pride Parade June 26, 2005 in Chicago, Illinois. Nearly one half million people were expected to line the parade route to watch this year's parade. (Photo by Scott Olson/Getty Images)

Marshall Field's Rolls Out Holiday Decorations

CHICAGO - NOVEMBER 21: Holiday-decoration horns are seen outside Marshall Field's November 21, 2005 in Chicago, Illinois. Marshall Field's has rolled out its holiday decorations in time for the holiday shopping season. (Photo by Tim Boyle/Getty Images)

U.S. Temperatures Hit Upper 90s

CHICAGO - JULY 17: Daoud Ghazzali (Rear) and his newlywed wife Shafiah cool off in The Crown Fountain to escape the heat during their honeymoon July 17, 2006 in Chicago, Illinois. Temperatures in the city have hovered in the mid-nineties for the past several days prompting the city to declare a heat emergency. (Photo by Scott Olson/Getty Images)

Near-Record Heat Wave Grips U.S. East Coast, Midwest

CHICAGO - JULY 31: Children cool off in Crown Fountain July 31, 2006 in Chicago, Illinois. Temperatures in the city reached 99 degrees Fahrenheit, tying the record high for the day. (Photo by Scott Olson/Getty Images)

19th Century Tall Ships Grace Chicago Waters

(credit: Tim Boyle/Getty Images)

CHICAGO - AUGUST 04: Tour boats pass Tall Ships docked along the Chicago River August 4, 2006 in Chicago, Illinois. The ships are part of an event called "Tall Ships Chicago 2006," celebrating Chicago's maritime history, held from August 3-9. (Photo by Tim Boyle/Getty Images)

Wrigley Field

CHICAGO - APRIL 02: Pedestrians pass Wrigley Field April 2, 2007 in Chicago, Illinois. The Tribune Company today announced the company was being taken private with an employee stock ownership plan headed by billionaire Sam Zell. With the deal the company also announced the sale of the Chicago Cubs and its stake in Comcast Sportsnet. (Photo by Scott Olson/Getty Images)

Lollapalooza 2007 - Show - Day 3

CHICAGO - AUGUST 05: Singer Amy Winehouse performs onstage at Lollapalooza in Grant Park on August 5, 2007 in Chicago, Illinois. (Photo by Roger Kisby/Getty Images)

The Sears Tower is seen July 30, 2008 fr

The Sears Tower is seen July 30, 2008 from Interstate 90 in Chicago, Illinois. AFP PHOTO/Mark Schmeets (Photo credit should read STR/AFP/Getty Images)

2008 Lollapalooza Music Festival - Day 3

CHICAGO - AUGUST 03: Girl Talk performs live onstage at the 2008 Lollapalooza music festival at Grant Park on August 2, 2008 in Chicago. (Photo by Roger Kisby/Getty Images)

Pedestrian cross a street blocked with "

Pedestrian cross a street blocked with "road closed" sign on November 3, 2008 near the Grant Park where US Democratic presidential candidate Illinois Senator Barack Obama will hold his election night rally in Chicago, Illinois. Front-runner Barack Obama and his comeback-seeking White House rival John McCain dashed through critical states in a frenetic final blitz on the eve of US elections. AFP PHOTO/Jewel SAMAD (Photo credit should read JEWEL SAMAD/AFP/Getty Images)

Sears Tower To Become Willis Tower As Willis Group Holdings Moves In

CHICAGO - MARCH 12: The Sears Tower rises above other buildings in the skyline March 12, 2009 in Chicago, Illinois. The Sears Tower will be changing its name to the Willis Tower after London-based insurance broker Willis Group Holdings moves into the building. The building, once the tallest in the world, was built in the 1970s to house the offices of the then largest retailer in the world Sears, Roebuck & Co. (Photo by Scott Olson/Getty Images)

Danish Crown Royalty Attend Presentation Of Chicago's Green Initiatives

CHICAGO - MARCH 23: Danish Crown Prince Frederik and Princess Mary visit Cloud Gate (known locally as the Bean) a sculpture by British artist Anish Kapoor following the opening of the Climate & Energy Conference on March 23, 2009 in Chicago. The royal couple is wrapping up a three-day visit to the city before leaving for stops in Nebraska and Colorado. The prince is on crutches from a recent accident while sledding with his children. (Photo by Scott Olson/Getty Images)

NIKE 6.0 BMX Open

CHICAGO - JUNE 26: Ronnie Napolitan, of Youngstown, Ohio, performs during the BMX Dirt Preliminaries during the Nike 6.0 BMX Open on June 26, 2009 at Grant Park in Chicago, Illinois. (Photo by Jonathan Daniel/Getty Images)

Iconic Sears Tower Changes Name To Willis Tower

CHICAGO - JULY 16: Commuters walk past the former Sears Tower July 16, 2009 in Chicago, Illinois. The building was renamed the Willis Tower today, after London-based insurance broker Willis Group Holdings, a major tenant in the building. The building, once the tallest in the world, was opened in 1973 to house the offices of the then largest retailer in the world Sears, Roebuck & Co. (Photo by Scott Olson/Getty Images)

2009 Lollapalooza Music Festival

(credit: Roger Kisby/Getty Images)

UNITED STATES - AUGUST 07: Fans watch the performance of Of Montreal during the 2009 Lollapalooza Music Festival at Grant Park on August 7, 2009. (Photo by Roger Kisby/Getty Images)

2009 Lollapalooza Music Festival - Day 2

CHICAGO - AUGUST 08: Rapper Prophet performs during the 2009 Lollapalooza music festival at Grant Park on August 8, 2009 in Chicago. (Photo by Jeff Gentner/Getty Images)

2009 Lollapalooza Music Festival - Day 3

CHICAGO - AUGUST 09: A general view during the 2009 Lollapalooza music festival at Grant Park on August 9, 2009 in Chicago, Illinois. (Photo by Jeff Gentner/Getty Images)

2009 Lollapalooza Music Festival - Day 3

CHICAGO - AUGUST 09: General atmosphere during the 2009 Lollapalooza music festival at Grant Park on August 9, 2009 in Chicago. (Photo by Roger Kisby/Getty Images)

2009 Lollapalooza Music Festival - Day 3

CHICAGO - AUGUST 09: Festival goers dance during the performance of The Hood Internet during the 2009 Lollapalooza music festival at Grant Park on August 9, 2009 in Chicago. (Photo by Roger Kisby/Getty Images)

Tethered Balloon Ride Offers Views Of Chicago Skyline

CHICAGO - SEPTEMBER 02: Passengers get an aerial view of the city while riding the AeroBalloon at Navy Pier September 2, 2009 in Chicago, Illinois. The helium-filled balloon, which opened for riders today, is tethered to the ground along Chicago's lakefront. The balloon ascends to 350 feet can hold up to 18 passengers. (Photo by Scott Olson/Getty Images)

Tethered Balloon Ride Offers Views Of Chicago Skyline

CHICAGO - SEPTEMBER 02: Passengers get an aerial view of the city from the gondola of the AeroBalloon at Navy Pier September 2, 2009 in Chicago, Illinois. The helium-filled balloon, which opened for riders today, is tethered to the ground along Chicago's lakefront. The balloon ascends to 350 feet can hold up to 18 passengers. (Photo by Scott Olson/Getty Images)

Tethered Balloon Ride Offers Views Of Chicago Skyline

CHICAGO - SEPTEMBER 02: Passengers get an aerial view of the city while riding the AeroBalloon at Navy Pier September 2, 2009 in Chicago, Illinois. The helium-filled balloon, which opened for riders today, is tethered to the ground along Chicago's lakefront. The balloon ascends to 350 feet can hold up to 18 passengers. (Photo by Scott Olson/Getty Images)

Downtown Chicago, including the Sears To

Downtown Chicago, including the Sears Tower, is seen from the air from Air Force One as US President George W. Bush flies from Andrews Air Force Base in Maryland to Los Angeles 30 January 2008. AFP PHOTO/Saul LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)

The Sears Tower is seen July 30, 2008 fr

The Sears Tower is seen July 30, 2008 from Interstate 90 in Chicago, Illinois. AFP PHOTO/Mark Schmeets (Photo credit should read STR/AFP/Getty Images)

Workers fix street light on November 3,

Workers fix street light on November 3, 2008 at the Grant Park where US Democratic presidential candidate Illinois Senator Barack Obama will hold his election night rally in Chicago, Illinois. Front-runner Barack Obama and his comeback-seeking White House rival John McCain dashed through critical states in a frenetic final blitz on the eve of US elections. AFP PHOTO/Jewel SAMAD (Photo credit should read JEWEL SAMAD/AFP/Getty Images)

The Wrigley Building along the banks of

The Wrigley Building along the banks of the Chicago River in Chicago 20 April, 2005. "Chicago" was derived from indigenous language, but it is not known which tribe, and many theories have been advanced to explain the origin of the name. One theory is that the name comes from the Indian words for either wild onion or skunk, but others believe that Chicago denoted "strong" or "great." AFP PHOTO/JEFF HAYNES (Photo credit should read JEFF HAYNES/AFP/Getty Images)

Chicago's skyline is reflected in the "C

Chicago's skyline is reflected in the "Cloud Gate" sculpture at Millennium Park in Chicago, October 01, 2009. US President Barack Obama heads to Copenhagen to join his wife Michelle in lobbying for Chicago's bid to host the Olympics in 2016. The International Olympic Committee is expected to deliver its choice between Chicago, Rio de Janeiro, Tokyo and Madrid on October 02, 2009. AFP PHOTO/Emmanuel Dunand (Photo credit should read EMMANUEL DUNAND/AFP/Getty Images)

Fashion's Night Out at Macy's State Street

CHICAGO - SEPTEMBER 10: Alex Chandoha, fashion design intern, attends the Macy's celebration of Fashion's Night Out at Macy's State Street on September 10, 2010 in Chicago, Illinois. (Photo by Tasos Katopodis/Getty Images for Macy's)

Houston Astros v Chicago Cubs

CHICAGO, IL - JUNE 01: Empty seats are seen on the roof tops across from Wrigley Field as the Chicago Cubs take on the Houston Astros at on June 1, 2011 in Chicago, Illinois. The Astros defeated the Cubs 3-1. (Photo by Jonathan Daniel/Getty Images)

Houston Astros v Chicago Cubs

Wrigley Field scoreboard. (Photo by Jonathan Daniel/Getty Images)

CHICAGO, IL - JUNE 01: The scoreboard is seen before a game between the Chicago Cubs and the Houston Astros at Wrigley Field on June 1, 2011 in Chicago, Illinois. The Astros defeated the Cubs 3-1.(Photo by Jonathan Daniel/Getty Images)

Seattle Mariners v Chicago White Sox

CHICAGO, IL - JUNE 08: Starting pitcher Gavin Floyd #34 of the Chicago White Sox delivers the ball against the Seattle Mariners at U.S. Cellular Field on June 8, 2011 in Chicago, Illinois. (Photo by Jonathan Daniel/Getty Images)