A lush oasis full of vibrant plants and striking geometric displays.

One man's remarkable private collection of art from around the world.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

A cluster of granite granaries perched on stilts.

The corpse bride of Portugal.

One of the largest Roman settlements in Portugal.

An exquisite collection of fairytale conveyances that puts most car museums to shame.

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

Portugal's National Pantheon has a history of curses, collapses and financial problems.

At night, bats patrol this magnificent 18th-century space in search of book-eating pests.

Elaborate tile work in this railway station tells the story of Portugal.

Ancient catacombs form the foundation for this Rococo orgy of a church.

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

Located in the thermoelectric factory that once powered the entire city, this Portuguese museum is shockingly fascinating.

A hidden three-foot-wide house separates these two regal churches.

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

The medieval castle built as headquarters for the Pope's secretive Knights Templar.

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

The verdant mossy ruins of a Franciscan monastery lie in the remote Sintra hills awaiting exploration.

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

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

A submerged village appears when dam levels drop.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.