These black pillars of volcanic basalt seem to call mountain climbers with an unbreakable siren song.

The largest outdoor art gallery in the Northwest United States.

This pop-culture shop also offers the chance to become part of their favorite tv show or movie.

This work of art by Matthew Mazzotta resides in this park dedicated to the first black legislator in Idaho.

This World War II-era bunker is now packed with posters and props from movies and TV shows filmed nearby.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

This recently rediscovered Civil War-era submarine was the first to ever sink an enemy ship.

Metal dinosaurs lurk in a sculpture garden on the outskirts of a popular resort town.

A museum dedicated exclusively to aircraft used in the military.

A sculpture made from recycled materials and hand-blown glass dedicated to transportation and transformation.

This statue is dedicated to Grace Sherwood, the last person in Virginia to be convicted of being a witch.

This cannonball stands as a reminder of the final act of a fleeting governor amidst a revolution.

A cement mixer-turned-kaleidoscope in downtown Norfolk offers different views of the city.

One tiny triangular park commemorates the victims of a yellow fever epidemic—many of whom are buried right below the grass.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

This small, unassuming street is now a canvas for color and creativity.

The handsome statue is a tribute to the post riders who traversed 52 miles of tough Arizona terrain.

Ironically this massive termite is the mascot for a company that is acclaimed for killing his kind.

From horses to stainless-steel trucks, this iconic Providence burger wagon is one of the oldest mobile diners in the country.

A work of art that pays homage to a Victorian timepiece in Providence.

The first declared National Monument in the United States.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.