This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

The park that the Chicago Stockyards built.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

"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."

Sniff the Titan Arum's rotting flesh.

The magic's in the hole!

The seamy, underground secrets of Portland's criminal past.

Rebuilt remains of a temple to Roman god Mithras.

One of America's most historic homes also holds a startling literary legacy.

A museum dedicated to the history and exploration of both popular music and science fiction.

A bizarre house filled with an astounding array of collections.

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

World's largest Christmas store.

A building so large that it has its own weather.

A monument celebrating the idea of reaching inaccessible places.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

Former villa and estate of James Deering developed to preserve native tropical forests.

First planned industrial community in the United States.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

Orthodox church partially financed by Tsar Nicolas II.

These pretty kitties killed and ate as many as 135 railway workers.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.