New York's southernmost subway station is whimsically wavy.

A terrific purveyor of natural history objects and curios.

A crumbling hospital from the 1850s on Roosevelt Island.

The very first subway station in New York City is beautiful, decked out in chandeliers, and ... abandoned?

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

A secret climbing tree hides along the side of a Costa Rican road.

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

A little sculpture with a large wardrobe.

A collection dedicated to the treatment of disease, held in London's oldest hospital.

An ancient neolithic tomb that only sees the sun twice a year.

These gigantic skeletons tower over visitors and provide insight into the creatures that once ruled over Ireland.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

Northern Ireland's Brobdingnagian stepping stones.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

The atmospheric road was never meant to be so creepy.

The telescope that discovered Neptune.

A fearsome dragon clings to a corner of Munich's city hall.

Go surfing on this urban wave, "hacked" by local surfers.

The patron saint of spinsters grasps a container of dried blood.

Two stone columns flank the grand Venice square, but there were supposed to be three.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

Many famous English poets including Elizabeth Barrett Browning are laid to rest at this Swiss-owned cemetery in Florence.

The graveyard is filled with beautiful funerary art and boasts breathtaking views of Florence.