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

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

Solitary monument dedicated to the beauty of nature.

Museum precariously perched on a massive yellow pillar.

A Tudor-style castle in Brazil holds one of the world's largest armory collections.

The massive gardens and office of a Brazilian sculptor.

You feel like you're in a forest, but you're actually walking amidst the branches and trunks of a single giant tree.

Two thousand artifacts from around the world collected by one woman who loved to travel.

An enormous, inside-out glass globe built in 1935.

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

On top of Gibbet Hill lie the ruins of a lavish turn-of-the-century estate that never quite came to be.

One of two lighted lanterns hung in the church belfry on the eve of the Revolutionary War to warn that the British were on their way.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

The poems Nathaniel Hawthorne and his wife Sophia etched into its windows are still visible today.