Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

2300-year-old Roman road connecting the empire.

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

The underground sanctuary of a mysterious ancient cult.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

Architectureal fantasy quarter of Rome.

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

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

This subterranean town of over 50 dwellings lies thirty feet beneath the Earth's surface.

Dozens of snakes are housed and worshipped within the walls of this Vodun temple.

Several ancient rock paintings can be found on the hills surrounding the Daramombe High School.

Hidden in the hills is a mysterious stone structure, known only to a few.

These otherworldly caverns form Earth's oldest known cave system.

The petrified remains of 150-million-year-old trees can be seen in and among the houses of the local villagers.

Raging waters have created a strange geological site that looks like something off of a progressive rock album cover.

A South African bar inside a hollowed out 6,000-year-old Baobab.

The largest prehistoric ruins south of the Sahara, once a powerful center of international trade.

Ethiopian standing stones featuring remarkably preserved carvings of swords and people.

The skeletal remains of the famous hominid "Lucy" were found at this spot.

An ocean in the making, in the Ethiopian desert.

Massive stele returned to Ethiopia after 70 years in Rome.

The hottest place on the planet.

An otherworldly restaurant perched on the edge of a jagged cliff next to a medieval holy city.