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

Louisa May Alcott based “Little Women” on her experiences growing up in this house with her sisters.

This small section of the Sleepy Hollow Cemetery is rotten with famous authors' graves.

A tropical paradise once home to space exploration and military installations.

The only sea in the world that has no land boundary.

Scary metal statues adorn some of the signature buildings of Burlington, VT.

A giant toy jack made of numerous welded-together fire hydrants.

Dispersed across 45-acres, 39 structures house a massive collection celebrating American Folk Art.

The early 20th-century home features cutting-edge technology of the day, such as ammonia refrigeration and needle showers.

The final resting place of New England's last "vampire."

An ode to Japanese artist Hokusai, with a bit of a comical twist.

Constructed in 1676, this stone memorial is believed to be the oldest veteran's memorial in the United States.

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.

Eat the ultimate iteration of Portugal's most beloved pastry.

The only surviving fragment of the lost Narragansett Pier Casino.

This staircase in a lush tropical grotto was built by enslaved laborers and renamed to honor Queen Victoria's role in ending slavery in the British Empire.

You can spend the night as an honorary lighthouse keeper in this quaint, historic beacon.

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

With some 500,000 books across five buildings, this bookstore is a reader's paradise.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

Stone monument honoring a town founder has a witch-boot shaped stain and a curse to go with it.

A son's promise to his dying father in the form of a covered bridge filled with thousands of seashells.