This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

A swath of France so devastated by war it is still forbidden to go there.

Two World War II aircraft lie within the jungle around this abandoned runway.

Japan's largest area of "pink moss" turns the hillside bright pink every spring.

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

The 43-mile route crosses through six islands with gorgeous views of the Seto Inland Sea.

Far from the shore, this sandy victim of the Skeleton Coast looks like it was plopped in the middle of the desert.

A medieval military street hidden beneath a charming French fishing village.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

A bike train runs along a disused railway line through the tranquil French countryside.

The steepest classic funicular in the world glides along a dizzying incline.

Street artists transformed an abandoned air vent into the beloved Star Wars robot.

Deep in the countryside lie the remains of one of the grandest Roman dwellings in Britain.