The Sighignola summit on the Swiss border offers views so breathtaking it's been named one of the most beautiful places in Italy.

A unique form of erosion created an uncanny landscape of boulders perched atop slender columns of clay.

Renaissance villa and gardens complete with a tormented colossus.

The bright red cars take travelers through breathtaking Tuscan scenery.

In Portugal, a secluded stretch of untouched natural beauty hides at the bottom of a steep hill.

This gaping hole in the middle of a remote mountain lake looks like a portal to another dimension.

Dead weights honor the dead of Portugal's fishing industry.

An early work of the architect Álvaro Siza Vieira, these swimming pools blend into the beach.

Local lore says the devil built this beautiful medieval bridge to help a fleeing bandit.

An abandoned mine now resembles a post-apocalyptic landscape of derelict buildings and blood-red pools of water.

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

This fairy-tale, neo-Gothic church in the Azores is a world of magical realism.

A unique seaside cave where Aleister Crowley faked his own death.

A submerged village appears when dam levels drop.

Houses are tucked between, on, and underneath giant boulders.

A small Portuguese cottage formed between boulders in the countryside.

An Italian hillside ghost town.

On rare days, this abandoned castle's gatekeepers open its doors, revealing the eye-popping splendor hidden inside.

The astonishing collection of an infamous criminologist.

The sinister ruins of one of the worst dam failures of the 20th century lie in this astonishing alpine setting.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

The city of Palestrina was built around this magnificent terraced sanctuary dedicated to the pagan goddess Fortuna.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.