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 museum dedicated exclusively to the lore and history of ouija boards.

This Idaho state park boasts the tallest single-structured sand dune in North America.

Some 46,000 years ago, a volcanic eruption led to a flooding event that carved this short canyon with steep vertical walls.

The only bridge in the United States where BASE jumping is legal without a permit year-round.

Where the famed daredevil attempted to launch himself across a canyon in a custom-built rocket.

These falls, sometimes called the "Niagara of the West," still put on a good show at the right time of year.

One of the "twins" in these falls on the Snake River was sacrificed for hydropower generation in the 1930s.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

Evanston's historic railroad complex saved this rail town from reaching the "end of the line."

Named for a prominent scout and explorer, this Wyoming state park encompasses a replica of an 1840s trading post, a 19th-century Army outpost, and early 20th-century automobile lodgings.

Surrounded by a hundred mile radius of billboards, Little America is a roadside attraction whose primary appeal is hospitality.

This sandstone building is a relic of the Overland Trail.

This prison-turned-museum is a remnant of the Old West's grizzly, violent past.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

One of the smallest towns in the United States.

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

Miraculous tree that seems to sprout out of solid rock.

Roaming bison and a spectacular view at the highest point in Nebraska.

Storage units with a wartime past.

A museum chronicling pioneer life constructed over Interstate 80.

Visitors to this museum will uncover a whimsical collection of marbles from across time.

Four ionic columns from the Treasury Department building ended up in a park in Nebraska.

Outside the Missouri Quilt Museum, this large spool has more than one million yards of thread—and counting.