Nassau Hall has served as army barracks, a museum, and played a key role in the American Revolution.

Seven people are buried in the middle of what's now a movie theater parking lot.

World War II bunker still standing on the New Jersey beach.

The bears of Bern have been a city highlight for over 500 years.

This simple apartment may have inspired some of the most important theories in the history of science.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

A medieval church built up to defend its village.

A celebration of all things tacky, garish, and bizarrely creative in the Romanian capital.

This once-derelict building is now one of the most beautiful bookstores in the world.

The fifth-longest natural arch in the world, and the longest outside China.

Jurassic Park—A Still Life.

Hundreds of drawings left by the land's previous inhabitants remain mysterious.

Largest collection of mounted dinosaur specimens in the world.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

A centuries-old church stands as a testament to Boston's "father of architecture."

The world's largest piece of copyrighted artwork.

This headstone marks the grave of an 11-year-old boy killed during clashes in the streets over the boycotting of British goods.

This historic Boston building has gone from personal estate to porn theater and back again.