This unreal Portuguese palace looks as though it's made from a pile of different castles.

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

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

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

This now abandoned restaurant provides some of the most amazing views of Lisboa.

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

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

Eat the ultimate iteration of Portugal's most beloved pastry.

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

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

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

Ghostly ship drawings grace the walls of this medieval hospital.

Life-sized bronze statues of fictional puppet characters.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

A ruined castle stands atop a hill surrounded by dragon lore.

This temple to the sturm and drang of Richard Wagner contains a dragon's cave and reptile zoo full of living "dragons."

This mysterious pig iron pillar does not rust, despite being weathered by the elements for centuries.

Thousands of flowers create enchanting pink tunnels over the city streets.

A pair of giant stone heads represent the ancient Roman saints beheaded here.

Residing along a busy thoroughfare, this sculpture urges passersby to consider the future.

Nicolas Schöffer's massive interactive sculpture was assembled in 1961 and brought back online in 2016.

Hiding the longest subterranean river known in the world.

The bones of the Biblical Magi traveled to Constantinople and Milan before landing in their current home inside an elaborate golden reliquary in the Cologne Cathedral.

This small condiment museum makes all manner of mustards with a 200-year-old mill.