Built in the 1920s, the two towers of this iconic landmark on Michigan Avenue once housed the headquarters for chewing gum magnate William Wrigley Jr.

The Chicago Water Tower on North Michigan Ave. was one of the few structures to have survived the Chicago Fire of 1871. Today, it's a gallery for local artists and photographers.

13-blocks of North Michigan Avenue comprise The Magnificent Mile. It offers retail therapy, a bevy of restaurants with international cuisine and examples of historical buildings.

It's the district that mixes business with pleasure amid soaring downtown highrises. Take a seat at one of many eateries, stroll along the river or enjoy the nighlife revelry.

Photo: Howard Lifshitz@flickr (CC BY 2.0)

Controversy surrounded the unveiling of this 50-foot statue in downtown's Daley Plaza in 1967. Some regarded Picasso's Cubist artwork to that of a baboon or a giant insect.

When the weather and traffic are bad, thousands of locals take advantage of this system of underground corridors and overhead bridges in a 40-block radius in downtown.

First opened as The Chicago Public Library and Civil War memorial in 1897, the building is famous for its stained-glass domes. Cultural events take place regularly and for free.

Photo: Brandon O'Connor@flickr (CC BY-SA 2.0)

Dig for dinosaur bones, learn how the city's tallest structures stand, and manipulate the power of water. Parents and kids will give this hands-on museum an A+ by the day's end.

From the original days as a fur trading center to what daily life is like today, visitors will learn all there is to know at the "Chicago: Crossroads of America" exhibition.

The largest science museum in the Western Hemisphere is the ideal environment for an immersion in science. The Omnimax Theater also shows fantastic films throughout the year.