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

World War II bunker still standing on the New Jersey beach.

Dispersed across 45-acres, 39 structures house a massive collection celebrating American Folk Art.

Who is this marble man, perpetually creeping up the steps of his own mausoleum?

A massive sustainable farm designed by the mastermind behind Central Park.

A beautiful, creepy 19th-century castle stands incongruous in rural Vermont.

Century-old shop, specializing in Occult products.

The oldest surviving presidential residence in the United States.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

Alexander Hamilton’s creation caused quite a bit of controversy.

This beloved marketplace mascot poops money and grants good luck.

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

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

Current docking place of the SS United States, the fastest transatlantic ocean liner.

Yo, Adrian!

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

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

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

Dr Barnes' $25 billion private collection of art and arboretum.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

A layered tribute to the work of mosaicist Isaiah Zagar.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A rare view of a preserved Victorian science museum.