This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

With a facade that measures just 107 centimeters, this five-story building is one of the skinniest in Europe.

An alchemist's “magic door” stands in the middle of a Roman park.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

A dead saint, a deadly poison, and a mysterious holy ooze.

The site of Paul Revere's historic two lantern warning.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

This landmark cemetery in Boston was created more than 300 years ago.

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.

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

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

The walls and streets of the ancient city are peppered with penises.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

This deconsecrated church has seen many uses, from a tobacco storehouse to a cinema.

Two stone columns flank the grand Venice square, but there were supposed to be three.

An abandoned monastery sits on a far-off island in the Adriatic Sea.

Come for the giant taxidermy lion, stay for the knick knacks at this Minneapolis curiosity shop.

A town honors its legacy of traditional American Indian pipe carving with one gigantic pipe.

The watery grave of an impractical idea.

Where one of America's greatest songwriters lived before he was Bob Dylan.

The Midwestern United States' tribute to Michelangelo is a foam statue sprayed with gaudy gold paint.

A curiosity-seeker's paradise set inside a three-story historic school house.