This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This amazing pedestrian suspension bridge in the Swiss Alps would give Indiana Jones nightmares.

The tallest outdoor elevator in Europe rockets passengers on a dizzyingly precarious ride to the top of a mountain.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

A Frankenstein blend of science and art allows one tree to produce 40 different types of stone fruit.

Natural cathedral designed by Italian artist Giuliano Mauri.

Living trees form the structure of an open-air palace.

A German town is growing a building out of trees.

Home to the "Circus" trees created by Axel Erlandson.

After 11 years of reconstruction work, Slovakia's finest hilltop chapel complex is finally reopen to the public.

An unusual cave filled with rare alien-looking aragonite formations.

Hungarian mummies in beautiful painted coffins.

An early-20th-century "dacha" village of quaint cottages curiously located in a modern part of Moscow.

A perfectly preserved hill village where the buildings are painted like white lace.

Polish luminaries and masterful folk art find sanctuary in this unique cemetery.

"Holy Wisdom" overlooks the city that became its namesake.

"Unity, Creativity, Beauty."

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

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.

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

An ancient Thracian city where fire rituals were practiced on the largest cult altar in Southeast Europe.

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