This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

Walk up a ramp through a forest for panoramic views of Lake Michigan.

The "Seinfeld" diner.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

The largest outdoor art gallery in the Northwest United States.

A small section of Boise, Idaho maintains the unique culture and traditions of the Basque people.

Inside this striking glass building, visitors can see thousands of dinosaur fossils in the positions that nature deposited them more than 150 million years ago.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

There’s a hidden military meme engraved on the World War II Memorial.

Opened in 1956, the first modern indoor shopping mall in the world was inspired by the shopping arcades found in European cities.

This whimsical park encourages its visitors and wildlife to roam on and around the various works of art.

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

This shop for all your super spy needs hides an educational secret.

This titanic Catholic church in Chicago is also a refuge of the fictional cult-favorite wizard detective Harry Dresden.

An outdoor urban gallery of large-scale artworks by the world's most influential street artists.

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

On the right bank of the Grand River a plaque remembers an imaginary painter who once awaited his youth.

An angular maze of concrete in Grand Rapids acts both as public art and as a staircase for fish traveling upstream.

A bronze statue on a downtown corner honors Minneapolis's favorite career gal.

This previously dilapidated alleyway has been transformed into one of Melbourne's finest hidden art locations.

A second generation sun-powered marvel lights up the night.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

A Looff creation in Santa Monica best described as “a California-Byzantine-Moorish-style fantasy.”