A poignant museum dedicated to the history of the Dutch resistance against Nazi occupation

This museum inside Amsterdam's largest cemetery explores how people deal with death.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

A floating cat sanctuary on an Amsterdam canal.

A curious collection dedicated to human and animal anatomy and pathology.

The world's largest carnivore sanctuary is home to over 450 meat-eating rescues.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

The largest greenhouse in the world is home to over one million types of plants.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

Once thought to be the mysterious work of a witchy prophetess, a well with unusual properties turns objects into "stone".

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

An extraordinary mixture of natural beauty and man-made phenomena.

The Dalai Lama named this New Zealand landscape the "Spiritual Center of the Universe."

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

A house carved into a rock in the 1940s.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

An Italian hillside ghost town.

The decaying ruins of Wales' first asylum for the mentally ill.