Bouncing, delightful, mechanical art at the MIT Museum.

Impossibly life-like natural history models created out of glass by a father and son.

A unique music museum housed in a historic Boston theater.

The remnants of a Gilded Age elegance preserved in the middle of a stark modern tower.

Beijing's World Park offers the excitement of international sites without the travel.

This working replica of the 'Friends' coffee shop is more accurate to the show than the set itself.

The most famous location in China was home to whole dynasties worth of imperial rulers.

For those with no fear of heights: a skywalk 4,700 feet up on a Chinese mountain.

Fascinating museum dedicated to the under-appreciated medical history of urology features some wince-inducing devices.

A model home in the Medical Examiner's Office in which grisly death scenes are staged to train forensic investigators.

The most decorated dog of World War I is preserved in the Smithsonian.