These natural cliffs look like they are a part of an old castle complex.

Said to be the only museum in the world dedicated to the most classic of all blooms, the rose.

Rock carving created 1,300 years ago 75 feet off the ground.

A magnificent, glittering building tucked into a tiny Bulgarian mountain town.

Outstanding, eerie frescoes and decorations fill this 19th-century monastery.

In a long-dry lake bed, these groups of massive stone pillars bear a striking resemblance to clumps of everyone's favorite fungi.

A striking symbol of the Bulgarian capital.

A flamboyant five-story building in Bulgaria resembles a crawling snail.

This historic black and white monastery is one of Bulgaria's architectural jewels.

The ceiling of Prohodna Cave in northern Bulgaria affords a peek at the sky via two deity-sized-eye-shaped holes.

Bizarrely shaped rock formations in northwest Bulgaria come with equally bizarre legends.

An architectural marvel that spans the Arda River, and has stories of a haunted past.

This huge pile of volcanic boulders hides a stunning network of secret grottoes.

Many cities have held the title, but Brazil snatched the crown from Chile in 2011.

Brasilia's oldest newsstand is sheltered by a wish-granting tunnel-tree.

Deep below the dry landscape of Bahia, a cave with intense blue water to float in.

What killed this humpback whale is a mystery, but its remains have become legendary.

This unique 230-foot waterfall is a natural beauty hidden within the vast wild landscape.

This breathtaking national park is one of the best places to see the weird and wonderful giant anteater in the wild.

Moss-covered sculptures fill this small Brazilian gorge.

A jungle in the heart of São Paulo reminds visitors of what Brazil looked like untouched by man.

This giant mural of Santa Muerte in downtown São Paulo reminds passersby of their own mortality.

One of the few places in the world where visitors can walk alongside fossilized tracks from 80 different dinosaur species.

Unusual rock formations eroded into a landscape of stone beasts.