A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

Ancient snack bar of the Roman Empire re-opened.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Erotic art covers the walls of the largest ancient pleasure palace.

The walls and streets of the ancient city are peppered with penises.

A 400-year-old church covered floor to ceiling in ex-voto offerings from the faithful.

The notorious "Hanoi Hilton" where Vietnamese colonial subjects and later American POWs, including John McCain, were imprisoned.

Ho Chi Minh's perfectly preserved body has been on display here since 1975.

One of Vietnam's most iconic landmarks was built by Japanese traders and is now in danger of sinking.

Artifacts and memories from the Vietnam war, located in a place that experienced it first hand.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

Hindu temple of the dead home to hundreds of long-tailed macaques.

An 18th century wonder of the world, lost in WWII, re-created at the Catherine Palace.

This effigy of Peter the Great is greatly disproportionate.

The menacing creature had a tremendous influence on the local culture before being exposed as a hoax.

A large circus museum with summer performances.

This cave holds a surprisingly colorful variety of geological oddities.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

According to the legend, this strikingly beautiful hill has miraculous healing powers.

Wisconsin's most celebrated export gets the royal treatment on I-94.