Now home to a drinking establishment, this building has a macabre history.

This church is known as "The Home Church of George Washington and George Mason."

The former home of the man whose radical ideas changed the nation.

An eponymous directional signpost erected by the first president of the United States.

This 15th-century structure had a long, tortuous journey to its current location.

This brick-lined pedestrian walkway was once a railway tunnel used during the Civil War.

Dedicated to one of the darkest moments in Irish history, this memorial has faced its fair share of backlash.

This headstone marks the grave of an 11-year-old boy killed during clashes in the streets over the boycotting of British goods.

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

Stolen goods adorn the organ at Old North Church.

Tragedy on Little Brewster Island memorialized.

The oldest working bell set in North America, the bells at Old North Church sat silent for their first four years in Massachusetts.

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

A rare and unique example of an 18th-century door latch calls this restaurant home.

This abandoned nuclear cooling tower casts a shadow over a bucolic town.

Within this lovely Richmond cemetery lie the remains of famous Virginians and some of Edgar Allan Poe's most beloved family and friends.

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

A small Richmond island dotted with the remnants of hundreds of years of history.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

These rows of World War II-era bunkers were the scene of some of the infamous Mothman sightings.

On the Fourth of July this area will transform into a Pompeii-like storm of falling embers and ash.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

This taxidermy horse was a Civil War hero.

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