The arch that celebrated the completion of the Lincoln and Victory highways.

This beloved roadside attraction welcomes visitors with his signature neon smile.

For almost 100 years, this site of peace and spirituality has existed on the California coast.

Thousands of crosses and markers for soldiers who lost their lives in Iraq and Afghanistan blanket a California hillside.

A man-made island in scenic San Francisco Bay.

A storybook European village in Berkeley.

A unique market that brings together various goods and cultures.

After serving in World War II and picking up Apollo astronauts, this aircraft carrier has been turned into a museum overlooking the San Francisco Bay.

A unique piece of graffiti offers a little slice of local history and mystery.

This bell tower is the only one of its kind in the Netherlands and was a symbol of prestige.

This spaceship sculpture in the middle of the Slovakian capital looks like it just crash-landed.

One of the shortest streets in York has an especially odd name.

The modern birthplace of Irish freedom.

This magnificent museum claims to house the cranium of a disciple and the skull of a pope.

An Italian restaurant became a rock-and-roll hangout and the lair of the "Hollywood vampires."

These subterranean storage areas hold emergency water reserves.

A monumental cross hides in the trees in Golden Gate Park.

The oldest lighthouse on America's west coast no longer needs keepers, yet they maintain the site anyhow.

This grinning pup statue is all that's left of what was once a ubiquitous Bay Area diner chain.

A hugely vast Irish landscape of barren rock that stretches for miles.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

This network of narrow, medieval passages has the most delightful name.

An architectural oddity hides in plain sight on this iconic London bridge.

This spooky statue sits outside a famous Prague theater.