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

An ancient underground cultic temple where sunlight penetrates on the summer solstice.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

At Ghana's largest wildlife refuge you feel like you're right in the animals' backyard.

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.

18m long sarcophagus of a constantly growing dead prophet.

Ancient barriers wrap around what was once an important stop along the Silk Road.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

The bears of Bern have been a city highlight for over 500 years.

This simple apartment may have inspired some of the most important theories in the history of science.

The site of Austria's biggest concentration camp now honors its victims.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

The largest ice cave in the world is thought to be the entrance to hell according to Austrian legend.

The former private quarters and office of Dr. Sigmund Freud now hosts a museum housing the works of the founding father of psychoanalysis.

Swarovski's museum/theme park is a fake diamond fantasia overlooked by a giant.

A miniature city, once ruled by the Queen of the Netherlands.

Go inside a revolutionary, cage-less zoo where 70 species of monkeys roam free alongside their human visitors.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.

The world's first interactive human body museum also serves as a chair for a giant orange man.

Amsterdam's former hotspot for public executions and dissections.

A former plague hospital turned medical museum.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.