A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

The Roman Emperor's lost summer home and grotto full of enormous sculptures sit along the Italian seashore.

The final resting place of New Orleans' most famous voodoo priestess.

Crossing this suspension bridge feels like walking through the sky, a fitting tribute to the head of the Apollo program.

The ancient water tanks remain some of the ruined city’s most beautiful architecture.

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

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

This WWII plane died a quiet death, and is now a garden eel playground.

Doris Duke's lasting collection of Islamic Art, hidden in a Hawaiian paradise.

This ancient Hawaiian henge may have been an early star chart.

Race through the maze, get your name on the sign.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

What remains of the summer palace of King Kamehameha III.

A Hawaiian stairway to heaven—that you can't climb.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.

A submerged archeological park still holds the wonders of a Roman Sodom.

This immaculate and historic water garden culminates in a massive stone dining table with an inset fountain for chilling the wine of the Cardinal's guests.

Ruins of a 10th century church tucked away deep in a botanical garden.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

If you want to talk to the Pope you will have to stare down this surreal vision of Jesus rising from a nuclear hell.