Sip cherry liqueur at a bar dating back to 1840.

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

The best place in the world to buy tinned fish.

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

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

The world's oldest bookshop still in operation.

Meant to resemble a massive tree, the building is the best example of Spanish organicist architecture in Madrid.

A subterranean house of worship carved right out of the bedrock.

This bridge's unique architecture honors nautical heritage and encourages self-awareness.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

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

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

Be on the lookout for the symbolic insect all over the city.

This century-old grotesque has a mysterious history and may not actually be a rabbit.

The remains of a Dominican friary, once one of the largest of its kind in the United Kingdom.

Unusual building appears to be haphazardly built from randomly piled bricks.

This little medieval church hidden in the center of Yerevan was lost and rediscovered—twice.

A massive cross stands as the sole resident of this water-locked Crimean crag.

The longest trolleybus route in the world, from Simferopol and Yalta.

This magnificent Crimean estate was once a playground of the Russian elite.

This space age health spa looks like a supervillain's lair.

A castle perched precariously over the Crimean Sea.

Welcome to the world's only museum dedicated to the Ukranian Easter egg.

Thanks to a spelling mistake this bizarre beaver-tiger hybrid became the symbol of a Siberian town.