Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

There's something big lurking beneath the surface of this tiny Oregon park.

All aboard the world's longest miniature railway.

A midcentury ranch house hides a literal treasure trove of unique rocks and minerals.

The short-lived railroad town in central Oregon has been abandoned since the 1930s.

A delightfully quirky blend of oddities spread throughout an old 1920s bank.

Home to the world’s oldest seismograph and a four-ton steel ball that makes its own earthquakes.

This forgotten building was one of the few Philadelphia-area breweries to survive Prohibition.

This elaborate towering structure was once famed for its revolutionary height.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

Huge masonic hall in Philadelphia with lavishly themed rooms.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

Every president in history is immortalized in bronze in downtown Rapid City.

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

This replica stave church looks like a piece of Norway was simply plopped down in South Dakota.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

This vast kitty-themed collection illustrates the history of human-cat interaction.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

These eerie outliers of the lightning bug family glow a mysterious blue color.

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.