Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

The home and studio of a visionary woodworker now stands as a museum and example of his artistic genius.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

A rare view of a preserved Victorian science museum.

Dr Barnes' $25 billion private collection of art and arboretum.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

The first American department store, and home to the largest operating musical instrument in the world.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

Home to items never before seen by the public.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Set sail on a small scale.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.