A modern sliver of architecture in Roma.

Museum dedicated to literary greats of the Romantic Period is also the home in which Keats met his untimely end.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

A fairy tale castle in modern Rome.

The final resting place of the poets Shelley and Keats.

The yawning maw of this pagan visage is said to bite off the hands of liars.

An alchemist's "magic door" stands in the middle of a Roman park.

Architectureal fantasy quarter of Rome.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

This semi-secret storybook hedge maze is also the oldest garden in the city.

Part bookstore, part café, and part forest.

Superstitious? Discover the witchy side of Mexico through its largest esoteric market.

Frida Kahlo's childhood home, now a museum of her life and works.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

A unique attraction and museum dedicated to exploring iconic roadside structures.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

In the northernmost city in the world, it's illegal to be buried because it’s too cold for bodies to decompose.

Stay overnight in the world's most sleekly designed rabbit hole, free of charge.

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

An intricately carved Viking church overlooks a glistening fjord.

This abandoned Slovenian military barracks has become a punky-political art squat.

A technicolor place of worship for Elevationists.

A menacing statue of this mythical creature can be seen at the legendary site of the monster's lair.