A hollow cement depiction of time's inexorable effect on the human body.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

An unassuming store hides relics of its former life as the jazz club that hosted some of the best black performers of the 1920s and '30s.

These pretty kitties killed and ate as many as 135 railway workers.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

A display of magnificent stained glass windows is the first exhibit of its kind.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

A military museum and library dedicated to the citizen soldier.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This historic hotel invented the chocolate brownie.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

A lush green oasis in the middle of Chicago.

G.V. Black, the Father of Modern Dentistry, keeps an eternal eye on Chicagoan’s teeth from his perch in Lincoln Park.

Orthodox church partially financed by Tsar Nicolas II.

Theater has had many different incarnations but has survived the ravages of time.

Where old school Polish Chicago and young hipster Chicago live side by side.

Odd, decrepit fountain honors Chicago author who had mixed feelings about his hometown.

Huge abstract sculptures of the Puerto Rican Flag.

Beloved bar home to musicians of all eras and reputations.

A European-style bath house in Chicago.