The world's largest solar furnace uses 10,000 mirrors to concentrate the sun's rays to generate power.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

France's most famous cemetery, with some of its most curious tombs.

This cabin from the 1850s is one of the first structures built by Chinese immigrants in California.

This giant iron playfully pays tribute to an early 20th-century architectural trend.

Everything you always wanted to know about borates is here.

One poet's handmade, anachronistic home.

Instead of becoming a power plant, this abandoned complex became a massive letdown.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

A miniature view of the park, caught in time.

The quiet canyon has a tumultuous history involving a doomsday cult.

The best Tiki bar in Las Vegas.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

An outdoor sculpture park of giant pink robots and post-apocalyptic Christmas scenes.

A ruined castle stands atop a hill surrounded by dragon lore.

Largest illuminated advertisement sign in the world.

On the highest peak in the Harz Mountains, science and the occult faced off in a failed attempt to turn a goat into a boy.

Tiny castle in the middle of the Rhine made you pay to pass.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

Legendary site where an evil bishop was devoured by rodents.

The last bastion of Roman presence north of the Alps looms over a German town.

Go surfing on this urban wave, "hacked" by local surfers.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.