This unusually shaped mountaintop tower looks like a UFO floating over the city.

This tiered waterfall is so pretty it may cause visitors to cry tears of their own.

Believed to have once stored either human remains or rice wine, thousands of mysterious stone jars lie in ruin.

This impressive clifftop temple was once at the center of an international custody dispute.

More than 100 Hindu temples are slowly being swallowed by the forest.

Giant pagoda houses the car that drove Thích Quảng Đức to his death by self-immolation.

Ha Long Bay's "Cave of Surprises" houses a popular phallic rock formation.

Home of the unusual art of water puppetry, one of Vietnam's oldest curiosities.

The ruins of an abandoned medieval city where the last Byzantine emperor was crowned.

An underground network of massive stone arches and their skylit vaults support ruins of portico structures above.

Swarms of dainty flying insects swarm into the Petaloudes Valley to get busy.

A Turkish ghost town abandoned in a population exchange with Greece.

A mysterious ancient cemetery with Roman sarcophagi and Lycian inscriptions.

Hidden just under the waters around this Turkish island are the ruins of a once great city.

A Lycian city of the dead carved into the hillside of Southern Turkey, complete with startlingly human touches.

This church houses the tomb—but not the remains—of St. Nicholas, the likely progenitor to Santa Claus.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

Ottoman-era houses lovingly preserved.

Large miniature theme park with 100-plus models.

A tiny park in the middle of some big power politics.

Ancient serpentine sacrifice holder that has stood the test of time.

A fountain standing as a testament to a doomed alliance.

A section of the long chain that blocked enemy ships from entering Constantinople.

Quite possibly the oldest love poem known to humankind.