The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

First LEED-certified gas station in the United States.

World-famous, Pink's still manages to keep its prized cult fetish status.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

This centerpiece of the Hollywood & Highland shopping center is a recreation of a long-lost movie set.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

For more than 50 years, an iconic sign has greeted visiting “fudgies” to the Traverse City area.

A crumbling mountain resort that looks like it was abandoned in an instant.

A charming remnant of 19th-century fishing towns sits on Michigan’s Leelanau Peninsula.

Two cannon-like cranes were installed on top of the bank building to fend off bad feng shui.

A 12-foot sculpture serves as a constant reminder of the importance of protecting and restoring the Boardman River.   

A subterranean world of tunnels links several buildings of this rare 19th-century asylum.

The world’s largest concentrated solar plant generates as many problems as megawatts.

You thought Santa Claus didn't exist, but it turns out you were wrong.

The sign to a demolished amusement park now stands in front of a local library.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

There are lots of hands and feet stamped in the cement in front of Grauman’s Chinese Theater, but Mel left behind something extra.

The decor of this Hollywood movie palace just barely predated the opening of King Tut's tomb.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

Historic funicular railway, believed to be the shortest railroad in the world.

A tree grown from astronaut seeds which were exposed to cosmic rays.