This historic, palatial theater is now one of the world’s most beautiful bookstores.

Once a 19th-century brasserie, this McDonald's exterior celebrates Alsatian design and the "King of Beer."

Eat your Big Mac in a DC-3.

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

A plaque marks a former safe house on the secret route, now hidden next to a McDonald's.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

Hawai'i's oldest wooden house was shipped around Cape Horn from Boston in 1820.

Occupied for six centuries by Franciscan Order nuns, this monastery is an amazing ode to Catalán Gothic architecture.

18th century anatomical amphitheater of the Royal College of Surgery of Barcelona.

A bookstore dedicated to the intersection of comedy and art.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A touching tribute to the "Queen of Soul."

Filled with history, this cemetery is maintained each summer by a few hungry goats.

A bronze plaque at an intersection in Hoboken marks the place where the game of baseball first took shape.

World Trade Center memorial likened to a woman's sexual organ.

A playground inspired by differential calculus dangles from the ceiling of the Liberty Science Center.

This unassuming retro burger joint was billed as “diner of the future” at the 1939 World's Fair.

The boulder on which Alexander Hamilton laid his head as he died can still be visited on the New Jersey coast.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

Whimsical artist house in the New Jersey woods.

A unique work of automotive art calls this shopping center home.

Once the home of a hermetic monk, this cave now houses a small church.

The true meaning behind this sculpture remains unknown.

Prank calls to this place, originally the "Tube Bar," inspired the creation of a Simpsons character.