A monument to the sheer amount of oddities one can collect over a lifetime.

Once the most flame resistant building in the country, the South Carolina Historical Society building was almost burnt down in a fire.

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

After the attack on Pearl Harbor, rocks and fossils from every U.S. state were collected into a pyramid of national unity.

Bat house that has only ever housed bat for one night; they all flew away and never came back.

A small poultry graveyard in the courtyard of a popular Key West watering hole.

Garden dedicated to native carnivorous plants and site of huge flytrap heist.

This abandoned lighthouse looks like a rusting oil rig, but has managed to survive a number of storms.

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

America's Most Wanted's set resides in this tribute to the history of crime and punishment.

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

America's first federal monument.

At 207 feet, one of the world's longest continuous escalators.

The final resting place of two (or three) presidents, one vampire, and 18,000 Confederate soldiers.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

The resting place of a Civil War celebrity's amputated limb.

An original apothecary from 1792.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

This replica of the Greek structure is in the heart of Nashville.

Dedicated to the history of the health sciences.

Could this grave be the true resting place of legendary gunfighter "Doc" Holliday? Unclear.

This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

Where manatees are the snowbird vacationers in these balmy Florida springs.