Through a gap in a chain link fence behind an auto shop is one of Arlington’s oldest family cemeteries.

An old railroad crossing that’s been converted into a pedestrian bridge.

Home to the first child born to English colonists in North America, this colony mysteriously disappeared while waiting for supplies.

Giant aluminum tusks erected over the main thoroughfare to commemorate a visit by Queen Elizabeth II.

A battleship’s mast sits atop a turret-like memorial, commemorating those who lost their lives in one of the precipitating events of the Spanish-American War.

Forgotten forts that were pivotal in Singapore’s military history.

Check the time in 145 countries at once with this East German relic.

1,500 Commonwealth servicemen of World War II are buried or commemorated in this cemetery.

This stone tower was built to protect Crete from incoming pirates.

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

Situated in a bustling intersection, this "mobile" monument that honors local veterans from five different wars has moved several times but appears to have found its final resting place.

America's first federal monument.

This fort down the Potomac from Washington, D.C. was once the only defensive fort protecting the capital.

The former home of Thomson Francis Mason, the mayor of Alexandria from 1827-1830.

This marker at the entrance to the Humphreys Engineer Center honors the former Chief of the Army Corps of Engineers.

The well-preserved remnants of a bridge that once made up a WW1-era military railroad.

This rudder is one of the few remnants of a shipyard that once operated on the banks of the Potomac River.

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

The tomb was guarded by soldiers from both sides of the war, and some left their initials carved in the brick.

The only place for a truly presidential dram.

The haunting concrete remains of a Nazi pebble crusher can still be found in this small French commune.

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

A museum of carnival attractions where you are invited to ride the rides.