Mysterious stone tower featured in many alternative histories of the New World.

This massive library holds what was once the largest book collection in the world.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

This small-town pizzeria won the Hollywood lottery.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

This abstract roadside poultry was saved from demolition by outraged drivers and pilots.

The Burnside Fountain and its questionable interpretation.

No one messes with the Massachusetts sacred cod, not this time...

This historic Boston building has gone from personal estate to porn theater and back again.

The first Catholic church in Singapore is a Neo-Gothic colossus with a rich architectural history.

This delicate museum is devoted to the art and industry that once supported Cape Cod's oldest town.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

A mysterious stone embedded at the base of a historic Boston building.

A colorful piece of contemporary art cheerfully clashes with Lyon's historical architecture.

Maybe the only missile installed in a public park, this Cold War leftover was one of the first to carry a nuclear warhead.

The largest body of water in Massachusetts annihilated four small towns just to slake Boston's thirst.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

The highest point in Maine is a grand gift to the state citizens that also happens to be one end of the Appalachian Trail.

As communication goes completely wireless, this Maine museum remembers all the wires that got us to this point.

The oldest farmer's market in America is so ancient it was approved by the King of England.

This massive World War II calculator hearkens back to the days when "computer" was a job title.

The famous facade of Grand Central Terminal hides a regulation tennis court, and it's not the first one.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.