This unusual lava tube spouts seawater during high surf.

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

A massive volcanic plug is now a protected area that hosts a number of bird species.

Every year, over 25,000 monarchs overwinter in Pacific Grove.

Two rocks in a perpetual kiss and one of "the most romantic spot in America."

An ancient Egyptian obelisk is now used to commemorate fallen Italian soldiers.

This giant fashion model is one of the most beloved symbols of Nagoya.

This ancient market is often referred to as the oldest shopping mall in the world.

This is the oldest Roman-made bridge in the city still existing in its original state.

An ancient Roman temple first dedicated to an emperor's wife is now a church.

This one-of-a-kind Roman arch is not actually dedicated to the god Janus.

The remains of this 2nd-century Roman temple are incorporated into a modern building.

A cheeky reminder about the value of art dangles above one of Olomouc's busiest streets.

Railroad officials in the early 1900s sought to spare travelers the sight of Roman soldiers’ private parts.

Is this cat asleep or just pretending?

A fearsome dragon clings to a corner of Munich's city hall.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

The footprint of a frustrated devil in Munich's Cathedral.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

A fountain standing as a testament to a doomed alliance.

A gorgeous, Gaudí-esque stairway constructed in the city of Istanbul by a prominent Jewish family.

See no evil, hear no evil, speak no evil.

The cutest shrine in Kyoto is dedicated to bunnies.

Time has been frozen at this station since the bombing in 1980—or so it was believed.