This small church was constructed over the ruins of three temples dating to the Roman Republic.

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

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

Drink wine handed out through a window as part of an age-old tradition.

This winding road through an Italian canyon may be the most scenic drive in the world.

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

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

Five candy-colored villages on the Italian Riviera.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

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

Concrete strongholds stand guard over the Golden Gate.

This concrete ship has had four careers - World War I tanker, floating amusement park, fishing pier, and artificial reef.

Southern California’s Theme Park Beginnings.

A humble garage, world-famous for being the epicenter of a technology revolution.

A music-filled, booze-soaked oasis in the desert.

A fake town founded by Western movie stars is now becoming a hip desert community.

Fourteen curious and controversial white bunnies sit in a circle near Newport Beach City Hall.

Hundreds of trees made from glass bottles make up this forest on Route 66.

The unbelievably opulent home built for an infamous newspaperman.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.