A historic freight system that found the true gold rush is in tourism.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

A train station that was abandoned by the coal industry and was later converted into a cocktail bar.

Step into Monet's world at this fine-dining restaurant in the middle of a New Jersey sculpture park.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

A tunnel with windows, so you don't miss out on the impressive views.

The unusual patterns in this rock formation result from two distinct modes of weathering.

A cooled lava flow from the Haleakalā volcano formed these surreal-looking columnar basalt structures.

World's first "penitentiary," meant to be humane, drove men insane.

This staircase in a lush tropical grotto was built by enslaved laborers and renamed to honor Queen Victoria's role in ending slavery in the British Empire.

A daily replay of the experiment that proved the rotation of the Earth.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

The rogue roots are gradually consuming some of the historic marble grave markers.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

At 207 feet, one of the world's longest continuous escalators.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A local prank turned town icon.

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

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

Vacant Beaux-Arts buildings that serve as reminders of a beach town’s glory days.

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.