An essential stop before plundering, BYO Cutlass.

This one-block alleyway is stuffed with street art that is colorful, cultural, and intensely political.

Home of the only civilian casualty at the Battle of Gettysburg.

Years of neglect and nature took a toll on this 19th-century lighthouse.

On this Puerto Rican island, many abandoned naval ammunition bunkers sit open while a few have been padlocked by locals as personal storage.

A magnificent waterfall nestled in the heart of the El Yunque National Forest.

The world's brightest bioluminescent bay.

The towering figures were created from the cemetery's fallen old-growth trees.

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

Washington's iconic carousel has a nice piece of Civil Rights history.

"Congress may voluntarily remain in session throughout the summer, in order that our Congressmen may be protected from the intolerable discomforts and dangers of the ordinary outdoor weather!”

A much-maligned monument to teetotalism.

A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

The beloved, war-tested mascot of a Union regiment graces their battlefield monument.

A diorama of the Civil War, fought by cats.

Built by the patriotic residents of Boonsboro in a single day.

This grisly headstone doesn’t seem to be resting in peace.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

Look closely and you’ll notice that the color changes a third of the way up the tower.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

The remains of a historic plantation nestled in between a parking lot and the rental car return at Reagan National Airport.

A Foundry on a Sleepy Street.