This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

The world's tallest statue of an American hero.

At the base of the Golden Gate Bridge, a small sign basically begs for a high-five.

The oldest lawn bowling club in the United States.

A classic advertising icon immortalized in regal bronze.

Shoot for par over the bodies of the dead on this cemetery-cum-golf course.

Guns that have been defending San Francisco since 1904.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

This private residence was the template for one of the most beloved television homes of all time.

A collection of memorabilia from the Beat era in the back of a San Francisco bookstore.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

This shop specializes in oddities and Victorian-inspired wonders.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

An artsy hidden staircase leads to breathtaking views of San Francisco.

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

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Ancient snack bar of the Roman Empire re-opened.

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

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

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

This picturesque Umbrian city has a subterranean side that has long remained hidden.

One of several skulls claiming to belong to the beheaded St. John the Baptist is on display at this Roman church.