The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

A painfully obvious spy house sits right across the street from the Russian Embassy.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

An eccentric inventor's castle home with its own indoor weather system.

Oldest unrestored plantation house in America that is open to the public.

The only working large-scale tea plantation in the United States.

One of the oldest living oak trees in the Southeast.

From failed port town to Civil War fort, the ruins of this former defense saw their finest day in the television age.

A sign marks the plane crash that caused two nuclear bombs to fall in North Carolina.

A theme park featuring a replica of Noah's Ark built to the measurements specified in the Bible.

This grave marks the final resting place of a legendary frontiersman... unless it doesn't.

The "mysteries" of this quintessential roadside oddity were almost destroyed by neglect but were saved by fans of kitschy wonder.

An abandoned 1920s school with a mysterious history.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.

One of the foremost Sherlock Holmes collections is hidden away at a Toronto library.

This picturesque abandoned home is rumored to be a spite house.

The grave of the iconic Kentucky Fried Chicken mascot features a bust of the man behind the goatee.

This scented city oasis was a labor of love.

Ruins of an American Civil War iron forge still survive today.

A maritime museum holding the remains of Blackbeard's pirate ship.

A 200-year-old bar with a cheeky name claims to have served Edgar Allan Poe his final drink.

A blank headstone topped with a pile of pennies marks the final resting place of the infamous assassin.

This free, take-a-book shop seems like a trick but isn't.