This claimant to the title of "smallest church in the 48 states" doubles as an equally tiny, quasi-post office.

A well-preserved relic of the industrial age steel and iron works that dotted West Virginia.

These disused steel furnaces are now haunting ruins that may one day be a national park.

The last funhouse of its kind, where guests enter through the mouth of an 80-year-old blue whale.

The god of wine stares out at passersby on this busy Pittsburgh thoroughfare.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

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

Where Venice's gondolas go for a tune-up.

100 year tradition of fist fights, marked by marble footsteps.

The only museum with its curator—and her pets—buried inside.

The pile of books behind the dignified writer gave the statue a most undignified nickname.

A galley-shaped memorial to the prisoners of an infamous fortress.

The remains of this 2nd-century Roman temple are incorporated into a modern building.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

An ancient Roman temple first dedicated to an emperor's wife is now a church.

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

The Pope’s secret escape route.

Ancient snack bar of the Roman Empire re-opened.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

For centuries, this large Roman villa remained hidden thanks to the eruption that buried nearby Pompeii and Herculaneum.

A crumbling watchtower and a lighthouse overlooks the site believed to be the Sirens' cliff in the "Odyssey."

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

One of Mexico's least-visited archaeological sites is tucked away inside a theme park.

The souvenir got the company’s founder out of a pretty pickle at the World’s Fair.