This set of three large, volcanic hot springs is a favorite haunt for intrepid divers.

Dakota legend claims this locally iconic pinnacle was once part of a sacred burial site that was cleaved in two.

Featuring the largest CinemaScope screen in Pennsylvania, this drive-in has entertained moviegoers for more than half a century.

While comics are the main attraction at this megastore, the second floor plays host to an exhibit fit for a museum.

After giving up Michelin glamour for his Amish faith, one chef now makes stellar sausages in a small, off-the-grid shop.

One of the world's largest murals covers a large swath of homes in its hillside neighborhood.

An abandoned mine where dreams of quicksilver trickled away over 75 years ago.

One of Philadelphia's largest murals resides hidden under this bridge.

Tucked away in the forests of Indiana resides an abandoned waterslide that is now a popular graffiti haunt.

In the bowels of a 19th-century brewery lurks a fine-dining restaurant offering an array of themed feasts.

This 15-foot tall obelisk commemorating the Philadelphia-Baltimore railroad connection sat neglected for over a century.

The oldest family-run restaurant in the United States is a living museum of New Orleans dining history.

A nearly 100-year-old dining car in upstate New York embodies the golden age of roadside dining.

The first plantation museum in the United States to focus on the lives of enslaved people.

A tribute to the Nirvana frontman hides beneath the bridge that was the singer's beloved hangout spot.

This 41,000-acre wetland complex is the largest marsh in the interior of the United States.

Abandoned ships along a deserted beach feel like the set of a post-apocalyptic thriller.

A natural dome made of volcanic glass in Inyo National Forest.

A former zoo turned public park, where visitors can hang out in the old animal cages.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

One of the world's largest model railroads is a mind-boggling achievement.

The site of one of history's most indelible and horrific tragedies.

This tiny New Jersey village has lived many lives but seems determined to remain a ghost town.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.