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

One of the three perfect vellum copies of this historic book known to exist is on display in a specially-designed case.

The hippo that stands on this university campus was once a drunken flea market purchase.

In 1977, an eccentric book lover formed a micronation for book lovers.

Intricate, eye-catching, award-winning rubber sculptures liven up this Pennsylvania town.

After an Illinois church was struck by lightning and burned down, Frank Lloyd Wright designed this replacement.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Eat the ultimate iteration of Portugal's most beloved pastry.

Carved initials which are nearly 500 years old preserve the deposed Queen's presence at Hampton Court Palace.

In 2013, historians discovered a hidden room devoted to the art of making royals' hot chocolate.

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

The world's longest continuously running show has played at this small West End theater since 1974.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Get in line for Lisbon’s most famous sandwich.

A replica of the steam engine that hauled Queen Victoria's Royal Train is on display at Windsor.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

The oldest continuously operating fish market in the United States.

An ornate and disused early 20th-century building has been given new life as a fully operational structure, complete with offices, oyster bar, and a furniture retailer.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

From cartoon characters to tiny tanks, a guerilla sculptor's little bronze statues are hidden throughout the city of Budapest.

Constructed by the younger brother of George Washington.