In one of America’s oldest mountain ranges, a long-awaited section of a scenic highway is now open to the public.

This vast kitty-themed collection illustrates the history of human-cat interaction.

Mysterious ancient boulder carved with petroglyphs in the mountains of Western North Carolina.

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

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

The ruins of this long-abandoned unsuccessful gold mine can still be found.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

A historic ruin just 20 feet away from a busy highway onramp.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

The famous abolitionist’s preserved estate is one of Washington's finest monuments to its great Black citizens.

Sit where JFK proposed to Jackie or where Nixon dined on meatloaf at this storied pub.

A super-sized promotional trick that is now a D.C. landmark.

A small token of gratitude from freezing cold journalists who were given a warm haven while covering JFK's inauguration.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

‘Bush the old fire dog died of poison July 5th, 1869. RIP.’

A tiny monument to the unsuccessful attempt by Thomas Jefferson to place the prime meridian in Washington.

This mysterious structure by the Washington Monument is a flood barrier designed to protect the White House against rising waters.

These abandoned waterworks are crumbling into the Potomac River.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

Before Nixon, "watergate" meant canals.

This stately mansion, built in 1787 by America's first Secretary of the Navy, is rumored to be one of the most haunted buildings in Washington, DC.

The U.S. Fish Commission’s effort to mass produce carp.

This lovely pocket park is one of the most under appreciated in D.C.