A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

Before there were doorbells this bronze ear was installed for visitors to announce their arrival.

An ancient artistic garden parlor full of hidden water wonders.

A formerly opulent Italian village is now a crumbling ghost town that no one really knows what to do with.

This military mausoleum captures the solemn grandeur that most memorials only aspire to.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Massive galleon from a box-office bomb docked in Genoa.

The mark of the Devil's horns on a marble column in Milan.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

The glacier tucked within a New Zealand rainforest.

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

After the devastating 2011 earthquake, historic Christchurch begins to recover, starting with the pop-up Re:START mall.

A perfect turquoise lake colored with glacier dust.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

This hunter-gatherer architecture is believed to be the oldest religious complex known.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

Da Vinci's equestrian statue, 500 years in the making.