The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

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

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This beautiful, historic church looks like something out of a simpler past.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This collection of unique liquids allows visitors to wander the waters of Iceland's glaciers.

Three columns of volcanic rock shoot out of the ocean.

Iceland's "Smoky Valley" is a beautiful river that is shrouded in a constant cover of steam clouds.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

The celebrated eyesore created by starry-eyed sweethearts.

An ancient iron pillar in Delhi that seems to be rustproof.

Temples adorned with intricate, erotic sculptures make up one of the "seven wonders" of India.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

The world's second-largest sundial, made entirely out of stone.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

Massive series of 45 caves and over 51,000 sculptures carved from cliffsides in China.

The most famous location in China was home to whole dynasties worth of imperial rulers.

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

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