This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

The little bear in the "funny kind of hat" has made his way from London back to Peru.

A paradisical gorge with rapids, waterfalls, and wildlife whose raw beauty is the stuff of CGI movies.

A Christian monastery stands on what was once a holy Incan temple.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

This church was transported brick by brick from the ruins of a 16th-century city into Panama City's current historic district.

In Costa Rica's cloud forest, the roots of a woody ficus create a botanical bridge.

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

Sloth rehabilitation center in the jungle of Costa Rica.

This neon blue river gets its color from a unique mix of bacteria and volcano minerals.

This scalding hot river was thought to be a myth until one geoscientist made it his quest to study the mystical waters.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

A remote candy-striped mountain in the Peruvian Andes straight out of the pages of Dr. Seuss.

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.

A miraculous three-handed portrait of a saint can be found inside this church.

A century-old prison in the heart of Vilnius is now a lively bar, dance club, and artist residency.

While this monument tile is shrouded in mystery it also marks the end of the longest ever human chain.

This striking structure is the Socialist-modernist centerpiece of a former Soviet spa resort.

The largest coin pyramid in the world is a carefully balanced stack of over 1,000,000 pieces.

Over time, this castle grew to encompass the entire island.

What almost started out as a spite house became an eccentric's found object masterpiece.

Once known throughout Europe, this tiny and unusually progressive 18th century micro-nation within Lithuania now lies in ruins.

This micro-nation may be some sort of prank, but its constitution sure seems official.