An eccentric playboy's astounding natural history collection.

The second-largest (of only two in the world) large particle collider is the underdog of experimental physics.

A large camera obscura, constructed entirely from digitally fabricated components.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

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

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

One of the indelible moments of the American Revolution took place at this location.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

Dramatic river bend surrounds a natural red-rocked pedestal.