The decor of this Hollywood movie palace just barely predated the opening of King Tut's tomb.

This L.A. fixture has been serving hot dogs out of a giant hot dog since 1946.

A legendary West Hollywood bar where celebrities shoot pool with the locals.

A master of deception, Harry Houdini's greatest trick may have been living in two places at once.

One of the world's longest murals depicts the history of diversity in Los Angeles.

Where beautiful signs live on forever.

This enormous banquet-themed artwork honors over 1,000 notable women throughout history.

A museum dedicated to one of Paris’s most famous residents, tucked into a corner of one of the city’s most famous squares.

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

The French leader's hat sits in a glass case at the oldest restaurant in Paris.

A surrealist timepiece by the artist of melting clocks.

A lone cannonball remains lodged in the walls of the Hotel de Sens as a sober reminder of a revolution.

For more than a century, revolutionary graffiti has marked the wall of a Parisian church.

Noirish green neon marks the location of one of the oldest private detective agencies in France.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the 20th century.

This demon atop the Notre-Dame de Paris looks utterly bored.

Montmartre's sole surviving windmill became an iconic landmark for 19th-century painters, artists, and bohemians.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

One of Jeff Koons’s largest sculptures and his first commemorative work.

A crumbling hospital from the 1850s on Roosevelt Island.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

The lesser-known Alice sculpture of Central Park dedicated to the “godmother of American children.”

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

This theater opened in 1998, but both the building and the puppeteers who perform there have a distinguished history.