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

Watch the newest land on the planet form before your eyes.

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

This black shoreline is made up of exploded lava particles.

A tunnel of hardened lava along Maui’s famous Road to Hana.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

Go inside to really appreciate this 500-year-old technological masterpiece.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

The marble facade hides a little-known medical museum with early surgical instruments and rare copies of canonical texts.

100 year tradition of fist fights, marked by marble footsteps.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

Ancient snack bar of the Roman Empire re-opened.

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

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

This Stone Age solar temple aligns with the sun on each equinox and solstice.

Hoax, mistake, or evidence of dinosaurs in human times?

A battle between nature and architecture in the Cambodian jungle.

Khmer Rouge's high security prison.

5,000 skulls in memorial to those killed by the Khmer Rouge.

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

An extravagant monument to an extravagantly unpopular Emperor.

Vietnam's feral abandoned water park offers access to a post-apocalyptic funscape, now with fewer crocodiles.

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