The home of the first American-born saint is one of the only curved buildings in New York.

Commemorating the spot where the famous scientist fed his pigeons.

The former hotel where Tesla invented the radio.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

Elevated freight railway turned wildly successful urban park.

Try not to get slimed in Tribeca.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

A crumbling hospital from the 1850s on Roosevelt Island.

The remains of a historic plantation nestled in between a parking lot and the rental car return at Reagan National Airport.

The only recreation of William Shakespeare's indoor playhouse.

This unique historical monument features large concrete spheres designed to resemble fallen stars.

This Virginia railway overpass is said to be haunted by a serial killer in a rabbit costume.

This recreation of a 19th-century dime museum is full of oddities.

The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

Century-old shop, specializing in Occult products.

One of Gettysburg’s least visited battlefield memorials is off the beaten path, but worth a visit.

The beloved, war-tested mascot of a Union regiment graces their battlefield monument.

One of the oldest Catholic churches in the U.S., situated just east of Gettysburg.

A local prank turned town icon.

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

This might just be the TARDIS of bookstores.