Gladiators battle and chariots race daily in the ruins of a once-great Roman city.

An ancient capital city that dates back 3,000 years and harbors many surprises.

A "miracle" that seems to produce more holy fistfights than holy revelations.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

Devoted Buddhists can earn enlightenment in the next life by crawling through this symbolic nostril.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

A beautiful bamboo trail tucked in this famous Japanese shrine.

Once a black market electronics marketplace, now an otaku shopper's paradise.

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.

The world's longest tunnel with an undersea section.

This ancient ruined monastery has been destroyed by fire so many times that it seems like God hates it.

A sandstone block marks the alleged spot where the legendary writer was conceived.

An ancient monastery, a locked room, and a mysterious book heist.

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

An underground city of salt.

This opulent 16th-century Maharaja’s palace is a unique mix of Hindu and Muslim designs.

This magical place built as an astronomical center starred as a James Bond villain's lair.

Fifteen Jodhpur queens left their handprints before going to their fiery death.

The oldest still-inhabited hill fort in India looks like a magnificent golden sandcastle.

This stunning 15th-century royal hill fort preserves the age of chivalry in Rajasthan.

A former bastion of Rajput chivalry, this massive hill fort is the site of legend and tragedy.

A complex of six forts embedded in the Rajasthan hills.

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.