This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

A throwback to 1980's gaming nostalgia.

One of the oldest living oak trees in the Southeast.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

This popular park is home to a sea serpent sculpture that now overshadows the twisted history of its creation.

A home that witnessed Civil War combat on the Sunken Road has the battle scars to prove it.

An overgrown garden stands as a grim marker of an unrealized dream.

The Virginia farm where John Wilkes Booth met his grisly end is now largely forgotten.

This rural community has attracted both scientists and techno-refugees due to its federally-mandated lack of technology.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

Located on Guam's south shore, this small cave is named for an ancient and powerful Chamorro Chief.

Launchpad for the US military’s dead mouse operation to battle millions of snakes.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

Visitors come from all over to bring gifts and tokens to the grave of Alice, who is thought to have died of a broken heart.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

The maritime museum that boasts the largest nautical library in the western hemisphere.

A bunker "with enough U.S. currency to replenish the cash supply east of the Mississippi" in the event of nuclear war now protects nitrate film.

San Diego's most historic and haunted home.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

Home to three historic ships from the age of Vikings.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.