A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

In Coyoacán, a pair of coyotes crown a public fountain in reference to the ancient Aztec name of the borough.

The elevator hidden in a smokestack on Roosevelt's yacht now serves as a monument to the former president.

The oldest military monument in the United States.

Connecticut grave of the woman responsible for the Winchester Mystery House in California.

The headquarters of the famous Yale society.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

The first transatlantic wireless communication between the U.S. and Europe took place here in 1903.

National Mall monument to the inventor of the screw propeller.

A merry-go-round that became a rallying point for the early Civil Rights Movement.

This is the last surviving Bollman truss bridge in the world.

A centuries-old stone pagoda from Japan stands among cherry trees beside the National Mall Tidal Basin.

A lending library of all possible categories of esoteric literature.

A local prank turned town icon.

A unique subway station where pillars evoke ancient civilizations.

One of the largest underground systems runs under Canada's largest urban center.

A collection of human remains, animal body parts, and other macabre curiosities all legally for sale.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

Known as "Toronto's Flatiron."

Canada's largest dinosaur skeleton was hidden away in storage for more than 40 years.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

A fantastic place to see murals, and an important location in the history of Toronto's legal street art scene.

One of Malta’s most important Neolithic sites sits in a suburban area south of the country’s capital.