A gift from Japan, 17th-century lantern stands among the cherry trees at D.C.'s Tidal Basin.

America's original house of worship for Spiritualism, the religious movement based on communing with the dead.

Standing 191 feet tall and measuring more than 55 feet in circumference, this is the world's tallest spruce tree.

In the middle of a busy airport, a statue honoring the astronaut who told Houston that Apollo 13 had a problem.

Silverware in the sidewalk outside a grocery store cements this neighborhood’s Italian culinary history.

After James Madison's death, his wife and former First Lady Dolley Madison lived in this yellow building near the White House.

This rowhouse doubles as one of the most photographed spots in the nation's capital.

The accidental discovery of this gilt bronze head led archaeologists to find the Roman Baths in the city of Bath

The only female equestrian statue in Washington, D.C. is a 15th-century French heroine.

Every year, the colorful murals of Montreal get a complete makeover.

This public art pays homage to the baseball legend and civil rights icon and his time in Montreal.

A Montreal deli that was so beloved that it was allowed to circumvent their laws of language.

These stained-glass windows are all that remains of a building that was the target of one of the biggest explosions in London after World War II.

This bronze sculpture was inspired by a photograph of Martin Luther King Jr. and his wife embracing after he won the Nobel Peace Prize.

This vintage short line in Amish country runs passenger steam train excursions and still hauls freight.

Harry Houdini plunged into the Charles River and performed one of his escape acts here in 1908.

An aptly-named street near the birthplace of the modern LGBT rights movement.

The romance of early commercial flight still fills this Art Deco destination.

A huge railroad museum with over 100 pieces of rolling stock focusing on the railroad history of Pennsylvania.

A posh members-only club with a literally dramatic history.

Once called Winthrop Park in 1889, home to a decidedly sexy tribute to the Monitor vs. Merrimac battle.

Dine on old-school red sauce fare at a former mob hang out and film set for The Sopranos.

A forgotten tribute to a South American hero hidden in a cluster of traffic islands.

World War II-era Nazi compound nestled in the Santa Monica hills.