The house where John Wilkes Booth conspired with his co-conspirators.

The original Uncle Sam was actually a New York meatpacker who is buried under this historic grave.

This tiny church near Sleepy Hollow contains Henri Matisse's last work, a rose window, and nine windows by Marc Chagall.

This tiny little island has, as the name says, just enough room for its single house.

The author of Uncle Tom's Cabin was neighbors with Mark Twain while living in this Connecticut home.

This English-inspired Maryland garden is home to acres of opulent plant life including bushes shaped into an entire fox hunt.

This artist's home turned gallery/museum preserves the creator's love of "Eastern" influences.

This iconic science fiction house still looks like something from the future.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

This historic graveyard monument is dedicated to a tragic victim of witch trial hysteria.

Kentucky's anomalous peninsula projecting into the Mississippi River, site of legendary earthquakes and local feuds.

This stone complex marks the urban center of a lost civilization.

This curved Manhattan building was built to house the opulence of John D. Rockefeller's oil empire.

The largest flower auction house in the world.

This historic museum is home to a rare Confederate Chester Gun.

There aren't too many operational funiculars around, but Pittsburgh has two!

Home to the story of the outlaw turned funhouse mummy, Elmer McCurdy.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

This ostentatious Italianate palace of an Oklahoma billionaire is filled with several themed mini-museums.

This historic old movie house was the scene of one of the Blob's most iconic attacks.

The ruins of this Thomas-Jefferson-designed mansion have been left to crumble since the Christmas Day they burnt down.

The ancient remains of this natural fortress can still be found along the Silk Road looking surprisingly preserved.