The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

Before Nixon, "watergate" meant canals.

Decades before the scandal, this staircase on the river was a literal "water gate."

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

The most accurate timepiece in the world.

A historic estate packed with George Washington's heirlooms, and its own nuclear bunker.

Oldest Protestant church in the Middle East, designed to resemble a synagogue.

Neighborhood in Jerusalem is home to the ultra-orthodox haredim.

This "Jewish Sistine Chapel" was designed to reinvigorate Judaism's artistic legacy but was almost lost to misguided restoration.

A "miracle" that seems to produce more holy fistfights than holy revelations.

Descend 2,030 years into the past in an ancient tunnel built to support Jerusalem's most famous wall.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

A more chill but no less fascinating version of the famous ancient archeological site.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

3,200-square-foot mural inside Dartmouth Library depicts the history of America with images of human sacrifice, ancient gods, and other unspeakable terrors.

The land is home to swimming ponies and a legendary 18th-century treasure.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.