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

A 19th-century horse lover's bequest led to the construction of this unique fountain in Chicago.

The site of the first couple's first kiss is commemorated by the most adorable presidential monument ever.

This mechanical wonder towers above a river in Michigan's capital city.

How did a 2,000-year-old Roman column find its way to a Chicago park?

This awkward aquarium sculpture is one of the strangest statues in Chicago.

This small interfaith chapel lies not far from the rim of the Grand Canyon.

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

Inside this store, a mysterious statue draws visitors from the world over.

A Wild West jailhouse that slid down the mountainside.

A spiritual vortex among the red rocks in Sedona.

This historic national park is covered in the stunning ruins of red rock pueblos.

In this small Phoenix taxidermy emporium, you can find everything from a squid in a jar to a freeze-dried toad.

A geological mystery on Camelback Mountain.

This 24-acre park offers a place for meditation in the midst of Sedona's iconic red rocks.

This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Originally conceived as part of a proposed Arizona State Capitol building in the 1950s, this structure built in 2004 stands as a monument to the architect's legacy.

This monument owes its name to a quote by the famous civil rights activist and journalist.

The building was originally a gas station built to resemble a Japanese tea house.

This South London cemetery holds the remains of more than 15,000 people.

An architectural oddity hides in plain sight on this iconic London bridge.

Scattered throughout London are ancient remnants of the city's former bounding wall.

Rebuilt remains of a temple to Roman god Mithras.