The highway's southernmost spot is a beloved local attraction.

A monument celebrating the idea of reaching inaccessible places.

This concrete sculpture features a woman opening her heart to showcase a beautiful fern.

A luxuriant botanical garden below sea level.

This home is decked out like a psychedelic explosion of colors and bowling balls.

During the solar phenomenon "Lahaina Noon" this bendy, curvy sculpture forms a perfectly circular shadow on the ground.

Once the site of the Hawaiian monarchy, this building was originally designed as a palace.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

The air force base preserves its scars from the Japanese attack on Pearl Harbor.

Race through the maze, get your name on the sign.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

Its unique collection details the history of the state's svelte railroads.

This working class sculpture pounds his hammer all the livelong day.

A giant Troll lurks under one of Seattle's oldest bridges.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

One of the largest trees of its kind in California.

Not truly a ship nor a building, the Navy's first and last "landship" is now abandoned due to clerical issues.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

Largest cave system in Africa.

Yo, Adrian!

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

A historic dam made famous for its turbines and feature in a Hollywood classic.

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

A six-foot pair of socks hangs from a drawer of the world's largest bureau.