The library houses an incredible collection of some of the world's most impressive books and manuscripts.

This kitschy tavern is also home to rare early editions of "Treasure Island."

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

An underground paleo-Christian burial site composed of the remains of several cemeteries and Basilicas.

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

Beautiful views and Roman-style statues on the Italian coast.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

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

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.

A well-preserved medieval village nested on a rocky outcrop and surrounded by a network of cliffs, natural bridges and canyons.

Historic medieval fortified city in southwest France.

This French castle is said to have once held the Holy Grail but is now a gorgeous mountaintop ruin.

Fascinating town where normal life interfaces with the occult.

This legendary city has been a tourist attraction for centuries.

The taxidermied remains of a once-great parrot.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

This museum was invented in a novel before being made real by the author.

Ancient serpentine sacrifice holder that has stood the test of time.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.