This neighborhood of futuristic ball houses looks like an alien settlement in a science fiction film.

The Netherlands is home to a bridge printed out of reinforced concrete.

Drive past the giant fruit sculptures and up to the window for a menu of fruity treats.

This may be the world's only drive-through windmill.

A rare double mill nestled along the banks of the Aa river.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

Where royalty waits in the height of luxury.

A beautifully eclectic mix of architectural styles.

Invisible bridge parts the waters, invoking biblical images and preserving the ominous feel of an ancient moat.

At the base of this tower, a plaque marks the original center point of the Netherlands.

Horse cemetery on the grounds of Blarney Castle.

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

Panoramic views of the city of New Haven and the Long Island Sound, with a side of history.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

Millions of numbers carved in glass represent the tattoos forced upon victims.

An easy-to-miss garden in Boston's North End honors the mother of JFK and others who lost children in WWII.

Dedicated to one of the darkest moments in Irish history.

A tiny plaque marks the location of the water source that facilitated the birth of modern-day Boston.

The remnants of a Gilded Age elegance preserved in the middle of a stark modern tower.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

A more than 260-year-old crypt built on Boston's oldest English burial ground.

This statue intended for children to enjoy became a minor political spat.