This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

The blinking light atop the iconic landmark has been sending secret messages for decades.

There are lots of hands and feet stamped in the cement in front of Grauman’s Chinese Theater, but Mel left behind something extra.

Resting place of Hollywood's immortals is also site of summer film screenings.

The celebrated eyesore created by starry-eyed sweethearts.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

This bridge was constructed from the rubble of the infamous Bastille.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Alexander Hamilton’s creation caused quite a bit of controversy.

Yo, Adrian!

This small, ancient Roman temple was once a church dedicated to the patron saint of penitents.

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

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

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

The "lovely red Vega" of the legendary record-settling pilot.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

Home to items never before seen by the public.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

Amid skyscrapers and traffic exists this unique aquatic ecosystem.