A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Elevated freight railway turned wildly successful urban park.

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

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

Ancient snack bar of the Roman Empire re-opened.

The yawning maw of this pagan visage is said to bite off the hands of liars.

2300-year-old Roman road connecting the empire.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

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

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

135 bronze medallions mark a French meridian line which once rivaled the hotshot Greenwich timeline.

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

Ancient paintings known as the "Sistine Chapel of Cave Art."

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The most famous location in China was home to whole dynasties worth of imperial rulers.

Living fossils in this remote Australian bay provide a glimpse of what Earth may have looked like 3.5 billion years ago.

A self-funded cemetery with a long list of inhabitants.

This Australian beach is composed of tiny shells.

Come for the flowers, stay for the bats!

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

This gracefully curving formation looks like a massive wave that was suddenly turned to stone.

Nine limestone rock stacks on Australia's "Shipwreck Coast."

WWI hospital ship lost in a cyclone turns up on the coast of Fraser Island, where she remains rusted and forgotten.

Alien rock formations grown from the sands of an Australian national park.