A boulder so big and tough, they had to turn it into a landmark.

An abandoned incline railway site is now a green space with six acres of trails connecting hilltop neighborhoods.

This 47-foot chile pepper sculpture welcomes Scoville heat unit obsessed tourists to the Big Chile Inn.

Under the right conditions, rocks will move across this dry lakebed, leaving trails behind them.

Three witches are said to be buried beneath these unmarked concrete graves.

Picturesque and haunting, these 160-year-old stone ruins on top of a bluff are the only remains of a settler's legacy.

Construction uncovered this trove of fossils, which visitors are welcome to add to their own collections.

Amtrak's least-used stop in the entire country sits in a tiny West Texas town.

Abandoned blast furnaces are an enduring reminder of Scranton's once booming iron business.

A 200-year-old live oak on the banks of Lake Pontchartrain.

An underground blaze turned this village into a ghost town.

Some believe this tree to be more than 1,500 years old.

The source of America's longest river is also a historical landmark and the start of a famous nude run.

Stand at the point where the two mightiest rivers in the United States converge.

An improbable water gap where the West Walker River, paralleled by a state highway, crosses the Singatse Range between Smith and Mason Valleys.

Hike, ski, or snowshoe to a backcountry yurt that serves up gourmet, four-course dinners.

Colorado's oldest church is now home to the largest handmade adobe labyrinth in the world.

Hike the ruins of a zoo that was shut down by an unsolved murder.

The ruins of the northernmost pueblo in the Americas tell the story of a mixing of native cultures.

This small, but beautiful waterfall has attracted visits from artists, composers, and two United States presidents.

A well-preserved set of ruins not far from Lovelock.

It bustled briefly in the late 1860s, but little is now left at this stage stop on the Hamilton/Pioche Stage and Freight Road

Now a secluded county park, this site was once a "health tourism" destination for wealthy Oregonians.

A well-preserved example from a 1920s network of airmail navigation arrows sits near Interstate 15 in southern Nevada.