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

Explore the legends surrounding these mythical sea creatures inside this museum.

The land is home to swimming ponies and a legendary 18th-century treasure.

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

These simple structures are living monuments to the fishermen who built this community over a century ago.

Meet manatees face-to-face at this zoo for native species.

In Florida, these naughty monkeys live on their own mini-monkey Alcatraz.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

The first North American landing spot for James Cook on his third voyage of discovery in the Pacific.

On the Oregon coast there is a natural hole that seems to be draining the sea.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

This angular Dwarven tunnel cuts through a mountainside in Glacier National Park.

The only road through the heart of Glacier National Park.

A giant pair of thick black glasses mark the tragic demise of a trio of rock and roll legends.

The notorious couple camped at this site after a bloody shootout with police.

Beating out all other concrete competitors, this massive garden feature's pointy hat has earned it a world record.

This zombie-themed restaurant stands out in the heart of corn country.

This vintage animatronics show is the Vegas version of a walk through the woods.

The largest wildlife crossing in Utah allows local fauna to safely traverse the six-lane Interstate 80 at Parleys Canyon.

Mine your own precious stones.

A monument to the egos of two railroad magnates that fell into decline along with their careers.

One of the smallest towns in the United States.

The park preserves a single, rare species of carnivorous plant that spells doom for unsuspecting insects.

Only known mainland rookery of the threatened Stellar sea lion.