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

This community on a small Venetian island has taken to painting their houses in bright neon hues.

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

St. Francesca Romana, patron saint of drivers, resides in the church she founded.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

A Nesting Doll of Churches.

Jesus' footprints and the first catacombs in the world.

2300-year-old Roman road connecting the empire.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

The Argonaute submarine was the French navy's pride and joy in the 1950's.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

This bridge was constructed from the rubble of the infamous Bastille.

With a history of slaughter, feast, and famine, remnants of the pork industry decorate this area--even its church.

France's national museum of scientific and industrial instruments.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

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

An artist's mausoleum with a haunting echo.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

Home to three historic ships from the age of Vikings.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A charmingly eccentric magma chaser presents his complete history of the island's eruptions since 1947, in cinematic form, just for you.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.