Home of the ruins of a British slave castle.

These homes carved into the mountains seem to defy the laws of nature.

The Voodoo Superstore of the world.

The central mosque of this Mali town is entirely built from mud.

Empty since 1989, now falling into ruin.

Where thousands of slaves passed through the "Door of No Return."

This series of rope-style bridges brings visitors into a jungle layer that is usually reserved for birds and monkeys.

A monument stands to the famous suffragist who penned the declaration for women's equal rights, including the right to vote.

An activist who committed her life to peace and women's suffrage.

This Virginia town has been famous for its fried chicken since the 19th century.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

A monument to a Native American leader who was known for never breaking a promise and met his end after signing a deal with white settlers.

The world's largest collection of the world's largest objects is in one small Illinois town.

The iconic D.C. restaurant where the Cuban Missile Crisis was negotiated, now a Walgreens.

Tacoma’s 25-foot coffee pot music spot has served up over 80 years of concrete kitsch.

An otherworldly restaurant perched on the edge of a jagged cliff next to a medieval holy city.

This lake in the Cascades lives up to its name, disappearing down a hole every spring.

A 605-page Quran penned in the blood of a dictator is locked away in a mosque.

A memorial to the tens of thousands of Irish who fled to North America during the Great Famine.

Albuquerque found the perfect use for tumbleweeds at Christmastime.

It's 2 billion years old!

Lima’s Museum of Anthropology is lined with thousands of elongated human craniums.

How would you like to dine in the same room where some of the Titanic's victims were embalmed?

A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.