Descend into the tunnels to experience the life of a coal miner.

Museum covers every step of the chocolate-making process, from cultivation to the finished product.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

This stunning French estate was so lavish that it landed its original owner in jail for the rest of his life.

The great Italian Renaissance painter was laid to rest here in the Chapel of Saint-Hubert.

Guests can stay at a hotel in the former French abbey where lie the tombs of King Henry II and King Richard the Lionheart.

Hundreds of prehistoric stones, arranged in perfect lines in a French field.

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

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

One of the most powerful religious centers in the Middle Ages, dubbed the founder of Western monasticism.

Geometry and mystery come together in an epic show of octagonal masonry.

A sulfuric hellscape in southern Italy.

Pompeii's less famous neighbor is still revealing her secrets.

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

Supposedly this Ethiopian chapel holds the Ark of the Covenant, guarded by virgins who cannot leave the building.

An Ethiopian "Jerusalem" featuring a church hewn out of a single rock.

Massive stele returned to Ethiopia after 70 years in Rome.

An 18-meter-long sarcophagus of a constantly growing dead prophet.

The Avenue of Mausolea is a series of grand palatial tombs.

Hundreds of Buddhas in a re-discovered Indonesian temple.

Site of the largest volcanic eruption in the last 25 million years, one which may have nearly wiped out humanity altogether.

Thousands of effigies of Buddha watch from caves set high above a legendary river, plus whiskey.

Believed to have once stored either human remains or rice wine, thousands of mysterious stone jars lie in ruin.

More than 200 statues filled with cryptic symbols give this park spot an aura of horror vacui fantasy.