Russian Orthodox church built on an Antarctic island.

An abandoned whaling station on an active volcano offers hot springs in Antarctica, surrounded by ruined giants of industry.

One of the world's southernmost bars.

During this yearly Welsh swimming race, competitors tread through the fetid waters of a bog trench.

An impromptu shrine appeared shortly after beloved "Torchwood" character Ianto Jones was killed off the show.

The only medieval bridge in Britain with its defensive tower still in tact.

One of the world's oldest trees comes with a Welsh legend intertwining it with a spirit prophesying death.

This lonely cast-iron structure is the only wave-washed lighthouse of its kind left in all of Britain.

Three bridges straddle a stream, one stacked upon the other.

This woodland area is a lasting tribute to the Queen Mother.

A beloved upside-down beacon off the coast of Northern Ireland.

A museum marks and documents the site of the Titanic's launch.

A meandering boardwalk across the bogland leads to a "stairway to heaven" with sublime views.

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

Northern Ireland's Brobdingnagian stepping stones.

The atmospheric road was never meant to be so creepy.

An enigmatic modern marker left next to a historic Roman site.

One of the four sanctuaries of Rieti's Holy Valley was the site of the first living nativity scene.

This statue is the only female representation of Rome's "talking statues."

This 2,000-year-old Doric bridge is still open to pedestrian traffic to this day.

Legend has it that this bronze orb, which sat atop an ancient Egyptian obelisk, once held the ashes of Julius Caesar.

Meet the oldest inhabitants of this Italian hamlet, a series of oddly preserved mummies.

This deconsecrated church has seen many uses, from a tobacco storehouse to a cinema.

The pristine waters crossing this forest form a hidden waterfall among the dense vegetation.