A few fun facts about Chicago

In 1885 the world’s first Skyscraper was built in Chicago.

The Sears Tower is the largest building (as of current) on the North American continent.

The first aquarium opened in Chicago in 1893.

The NFLs Chicago Bears were first known as the "Staley Bears".

The first animal purchased for the Lincoln Park Zoo was a bear cub, bought for $10 on June 1st, 1874.

The Chicago River is dyed green on Saint Patrick’s Day.

Chicago is the nation’s third largest city.

Contrary to popular belief, the Fire of 1871 burned less than one quarter of the area of the city.

America’s first movie studio, Polyscope, was founded in Chicago in 1897.

The airport baggage abbreviation for O’Hare International Airport, “ORD,” derives from the location’s earlier name, Orchard Place.