This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

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

A lush green oasis in the middle of Chicago.

This New Orleans tree is filled with hidden chimes that produce a carefully tuned melody.

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

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

These particularly resplendent rodents are the state animal of Maharashtra.

Caves famous for the dragon-slaying saint who lived there.

This lovely little bridge hidden in a Switzerland gorge is essentially a fairytale.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

The Sighignola summit on the Swiss border offers views so breathtaking it's been named one of the most beautiful places in Italy.

This half-finished "city of toys" was almost Italy's own Las Vegas.

This medieval Italian town is a sheer (and beautiful) cliffside defense.

Located near Cairo's El Korba district, the abandoned mansion continues to inspire mystery and rumor throughout the city.

Slum Settlement Filled With Mountains of Garbage.

An abandoned outdoor movie theater in the Sinai desert.

A massive work of modern art that appears to be a crop circle in the middle of the desert.

An endless sea of white conical domes.

Ozymandias’ time-keeping temple.