The red brick house where the father of rock 'n' roll wrote some of his classic hits.

The only remaining Cold War–era Minuteman II missile control center in Missouri.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

Unchanged for centuries, this medieval library keeps its books in chains.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

The former headquarters of history's oldest megacorporation.

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

A floating cat sanctuary on an Amsterdam canal.

This historic Amsterdam bar used to accept sailor's monkeys as payment.

Where royalty waits in the height of luxury.

Was there a small "backpack nuke" hidden in the attic? JFK apparently thought so.

The only natural cave bath in all of Europe.

Order cookies baked by cloistered nuns in a 400-year-old monastery.

The little church's beautifully frescoed ceiling has earned it the nickname “the Sistine Chapel of Madrid.”

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

Home to items never before seen by the public.

A painfully obvious spy house sits right across the street from the Russian Embassy.

Sip creative cocktails in the former vault of the Riggs Bank.

Parking garage where Bob Woodward met Watergate source "Deep Throat."

Sit where JFK proposed to Jackie or where Nixon dined on meatloaf at this storied pub.

Chef Lawrence West serves up Indian tacos, wojapi, and other Lakota dishes at the brick-and-mortar incarnation of his popular food truck.

Known as "The Hill of the Little Devils."

Restaurant in Northern Wisconsin comes with a unique feature: a grassy roof covered in living goats.