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

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

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

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

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

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

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

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

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

An Irish Memorial commemorating those who perished due to potato blight.