An ancient capital city that dates back 3,000 years old and harbors many surprises.

Europe’s oldest natural human mummy.

The Incas turned this ancient Wari aqueduct into an imposing defensive gate.

An Inca spa, military outpost or maybe… both?

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.

Cold storage for agricultural biodiversity.

An underwater city for the dead.

The "Jade Museum" is full of thousands of intricately carved works of art made from various precious stones.

A modern-day cabinet of curiosities housed in a 300-year-old inn.

A magician and his beloved, pampered canine were buried together, within days of each other, due to a tragic twist of fate.

This local landmark is home to art galleries and the area's only community darkroom.

An allegedly haunted testament to a local businessman's desire for status, posterity, and charity.

A gazebo that inspired the fifth episode of the "Twilight Zone" still stands in the creator's hometown

A collection of artifacts from two worldwide industries that called Endicott, NY home.

A memorial to the 1913 tragedy that helped protect the workers of the future.

The birthplace of the ferocious William the Conqueror, this castle is awash in medieval history.

A beautiful ruin of a 14th-century Plantagenet castle built by a medieval mercenary.

Travel through the hidden underbelly of the city in colorful tunnels filled with art and history exhibits.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

Canada's subterranean Cold War museum has doubled as a movie set.

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

The writing studio of an American adventure author, built in the style of a medieval castle.

These sprawling mines once served as a source of plaster and today serve as a storage facility.

The evolution of recreational vehicles and motorhomes is on display in the “RV capital of the world."