This innocent-looking townhome is actually a subway exit.

A prized globe signed by Amelia Earhart and Charles Lindbergh sits in the Brooklyn office of the American Geographical Society.

Final resting place for the Triangle Shirtwaist fire’s unidentified victims.

This outdoor gallery of graffiti-covered walls pays homage to the past, present, and possible future of street art.

A mysterious, abandoned building rotting on the Brooklyn waterfront.

This seemingly unremarkable boulder is said to bear the hoofprint of the devil himself.

Final resting place of the immigrant who brought artificial seltzer water to America.

One of only two remaining Victorian-era greenhouses in New York.

A curious friendship between two inanimate ladies.

A heartbreaking monument showing the last morning in the life of Jane Griffith.

An abandoned subway tunnel that could have reinvigorated Staten Island still lies somewhere beneath this Brooklyn park.

One of the U.S. Forest Service's only mansions is outfitted with a dinner table for floating food.

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

This Old Testament garden features 100 plants from biblical times.

Once the most painted on object in the world, this short campus fence is well on its way to being so again.

A take-out restaurant that only serves cuisine from countries with which the United States is in conflict.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

A local prank turned town icon.

This huge, disused viaduct is now a crumbling concrete underworld of covered in years of graffiti.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

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

A planned settlement in Pennsylvania once housed the aristocratic refugees of the French Revolution.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

This collection honors the iconic, and proudly American lighter that just won't quit.