Sweet Willy, at 30 feet tall, is the world's biggest beagle.

This set of hot springs also comes with fantastic views.

Jail from the 19th century that was built by inmates.

A black cottonwood gets a second life as a home for books.

This museum glorifies the humble potato.

When in Idaho, sleep in a giant potato.

See just what life was like in a 19th-century prospecting town.

A former gold rush boomtown has managed to stay in business for over 100 ramshackle years.

Eighty million natural history specimens call this gargantuan museum home.

Thousands of migrating monarchs overwinter clustered amongst the eucalyptus trees.

This hidden green space is the city's second largest conservatory.

This 1920s Dutch barge is now a floating bookstore.

A massive sea stack famous for its appearance in The Goonies.

This unusual rock formation looks like an apple that has been neatly sliced in half.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

This Alamo Square mansion is rumored to have hosted satanic rituals and other occult practices.

Eight feet in diameter and more than 24 feet around.

A number of gruesome unsolved murders have turned this simple home into a morbid tourist trap.

Famous for its bio-luminescent inhabitants, known as "Dismalites" .

This art gallery and oddities boutique bewitches visitors with a trove of occult trinkets and eccentric antiques, work by an ever-changing roster of underground artists, and classes in tarot and other mystic arts.

A four story, football field-sized, nine-grotto creation made of shells, minerals, and rare stones.

Partially submerged Buddha heads freckle Chicago’s neighborhoods.

The site of the first couple's first kiss is commemorated by the most adorable presidential monument ever.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.