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

A former major munitions plant that has been converted into a sprawling art space.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

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

Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.

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

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

America's second-oldest brick baseball stadium was home to a legendary WWII series that only sailors got to see.

A war-torn Olympic relic is being overtaken by graffiti and nature.

This abandoned Olympic skiing facility still bears the scars of the Siege of Sarajevo.

An apparition of Virgin Mary in Herzegovina.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

The place where World War I began.

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.