The world's largest neutrino telescope searches for secrets of the universe at the South Pole.

Naked scientists race around the pole in the frigid cold to try to join Antarctica's exclusive 300 Club.

These passages carved from the Antarctic ice hold strange shrines to the harsh southernmost climes.

This exceptional home was a 32-year labor of love by a man determined to build his wife the most beautiful stone house in the world.

This 11th-century structure is one of the oldest churches in Romania.

This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.

An enormous dragon scales the walls of this 17-story temple.

Looking like nothing more than a cartoon deserted island, this tiny sandbar is home only to a single umbrella.

Solar observatory doubles as a daring display of Expressionist architecture, much to Einstein's chagrin.

The steepest classic funicular in the world glides along a dizzying incline.

The premier place to experience the Victorian imagining of the steam-powered future.

The remains of what was, not so long ago, the world's largest city.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

The crumbling remains of a 19th century fortess.

The drama of nature in full effect in this Nevada State Park.

This shuttered power plant is now Turkey's first industrial archaeology museum.

An abandoned railroad tunnel is now filled with bioluminescent bugs.

The largest cave chamber in Britain—big enough to fit a whole cathedral inside.

A beautiful medieval bridge allegedly constructed by the Devil.

A group of glacial erratic boulders are improbably balanced on white limestone pedestals.

This amazing trail among the many waterfalls around Ingleton has been enchanting visitors since 1885.

Come in, light some incense, and ignore the live snakes around you.

A walkable map of the world, made from soil and stone by one man.

This century-old ruined temple was reborn as "The Church of Skate."