Queen Anne style apartment house built in 1886.

A 9-story, poured concrete structure which was used as a glue factory with an indelible smell.

A tree that grows parallel to the ground was declared Brooklyn's "crowning curio" by the poet who saved it.

The ballpark in "Pigtown" where the Brooklyn Dodgers made their name was replaced with a huge apartment complex.

These caves secretly held national treasures during World War II.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

This saucy statue once caused outrage among locals.

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

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

Ancient snack bar of the Roman Empire re-opened.

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

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

An elegant church is home to a remarkably detailed mosaic floor depicting the Garden of Eden.

Its columns were all carved from the same white oak tree.

A pair of black granite tails dive into a sea of grass in landlocked Vermont.

Driftwood dinosaurs lurk within trees covered in a rainbow array of avian abodes.

Abandoned Coast Artillery fort now serves as a graffiti canvas and sightseeing vantage point.

It's said that this stone with its mysterious runic inscription is evidence of the Norse visiting Narragansett.

Tucked away amidst some of the most famous addresses in the world is New York’s only fraction of a street.

The lesser-known Alice sculpture of Central Park dedicated to the “godmother of American children.”

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

This abandoned seaside fortress is now simply an imposing ruin being taken back by nature.

The "Seinfeld" diner.

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.