Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

A Portuguese Jewish cemetery filled with stunning grave monuments that date back to 1614.

The largest collection of handbags in the world, the oldest of which were used to carry Bibles, primarily by men.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

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

A layered tribute to the work of mosaicist Isaiah Zagar.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

A magical place that lets you play in and explore the world of Studio Ghibli.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

A French artist's vague warning hangs over Belleville.

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

The final resting place for the remains of 143 Habsburg royalty.

The beautiful baroque library of the Hapsburg empire.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

This grisly exhibit houses skeletons and weapons from a devastating 14th-century clash.

This massive library holds what was once the largest book collection in the world.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

Street artists transformed this abandoned industrial neighborhood into one of Europe's largest graffiti exhibitions.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

Stockholm's deepest subway station is also a stunning ecological wonder.

Sweden's "good old days" painstakingly re-created in a model village.