An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

Oldest church in the United States that is still in continuous use.

Though a proud Texan, the 41st President of the United States started life in the suburbs of Boston.

From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.

The ruins of one of the first railroads in the U.S. lie hidden within a neighborhood cul-de-sac.

The world's only surviving heavy cruiser has a haunting history.

This mill played a key role in the region’s development and it is just one of ten along the east coast of the United States.

The homestead of American patriot John Adams.

This small shop walked so America could run on Dunkin'.

The nation's second-ever First Lady urged the founding fathers to "remember the ladies."

These beautiful garden buildings are among the oldest surviving greenhouses in the United States.

These figures float and flutter in this fountain crafted by famed Swedish sculptor Carl Milles.

A whopping 14,000 copper coins cover this miniature fighter jet.

This folk art dinosaur was almost pushed to extinction due to lack of a building permit.

A historic bridge with a lovely acoustic anomaly.

No one really knows how these old hobby horses got here, but the herd keeps growing.