An eccentric Victorian aristocrat's enormous collection of medieval armor and weapons from around the world.

The world's oldest known salt mine.

The metal leaves on this tree are engraved with the names of Holocaust victims.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

A battle between nature and architecture in the Cambodian jungle.

On this Puerto Rican island, many abandoned naval ammunition bunkers sit open while a few have been padlocked by locals as personal storage.

A magnificent waterfall nestled in the heart of the El Yunque National Forest.

The bat-covered home of one of the world's most popular brands of rum is located on a tropical Art Deco campus.

A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

No one knows the meaning behind this giant sculpture of a nude woman with a fork riding a rooster in Havana.

The house that birthed The Old Man and The Sea is now a museum devoted to the old man who wrote it.

Ride the subways of yesteryear.

A Wisconsin kitsch palace from the 1930s lives its second life in 21st-century Brooklyn.

Sniff the Titan Arum's rotting flesh.

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

First planned industrial community in the United States.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

One of Chicago's last seafood smokehouses perfects a dying breed of fishcraft.

This urban drawbridge gained eternal pop culture fame when the Blues Brothers jumped it while it was raised.