An unexpected desert oasis in South America.

One of the world's tallest waterfalls wasn't revealed to the world at large until 2006.

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

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

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

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

A former French military respite turned jungle tourism hotspot.

This Cambodian riverbed is covered in ancient Hindu carvings both above and below the waters.

This impressive clifftop temple was once at the center of an international custody dispute.

More than 100 Hindu temples are slowly being swallowed by the forest.

A small 12th-century temple surrounded by waters believed to have curative properties.

A secluded, little-known temple hidden amid the dense jungle.

This Portland Art gallery doubles as a studio that supports adults with intellectual and developmental disabilities.

Hans Christian Andersen for the postmodern world.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

Old Danish castle immortalized in Shakespeare's Hamlet.

One of the world's few mounted blue whales, its jaws are hinged open allowing visitors to descend into a lounge.

This encrypted monolith protected a secret of Norse mythology by hiding in a church wall for over a millennium.

This simple roadside art installation ended up sparking a folk art movement and a controversy of international proportions.

Enigmatic bug-like sculptures mystify drivers along a Swedish highway.

A modernist church in an ancient village.

A medieval village holds a very modern hotel.