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

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

The world's oldest bookshop still in operation.

Single runway interrupted by a busy road that cuts across its middle.

The tomb of history's greatest potato promoter is surrounded by tubers.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

France's most famous cemetery, with some of its most curious tombs.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

This gem from the industrial age helps visitors and residents alike traverse hilly Stockholm.

This mountaintop lake bubbles and steams in a perpetual boil, thanks to its direct link to the Earth's interior.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

A surrealist timepiece by the artist of melting clocks.

The largest coin pyramid in the world is a carefully balanced stack of over 1,000,000 pieces.

Things aren't quite what they seem at this mind-bending museum.

The Frank Zappa fan club erected this monument to their prog-rock hero to mark a new era of post-Soviet Lithuania.

While this monument tile is shrouded in mystery it also marks the end of the longest ever human chain.

This micro-nation may be some sort of prank, but its constitution sure seems official.

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

A unique park tells the geological history of Belarus in a national “map” of thousands of boulders and blue spruce.

Glowing orb in Minsk houses 8,600,000 items.