Ecosystems

Approximately 300 million years ago, a massive coral reef existed in what is now the largest limestone cave in Japan.

Ancient, mysterious stone altars are hidden among wild woods in central Italy.

These wondrously illuminated caverns extend under the mountains of the Fukushima Prefecture.

This cave overlooking the Indian Ocean has been turned into a shelter and makeshift museum.

It is said that coins washed in the waters here will miraculously multiply.

Access to this hidden site of a 14th-century mass suicide is prohibited, unless it is to pray for the dead.

This conservation area filled with colorful birds is the last community forest within the city of Kathmandu.

This hidden fortress has been coined the "City of Ghosts."

This ancient burial site was once thought to be the home of a race distinctive to Ainu folklore.

The development of this cliffside waterpark is representative of Mexico's history of co-op tourism developments.

According to legend, this cavern holds the passage that Persephone used to travel to and from the underworld.

The tallest waterfall in the Judean Desert is named for its connection to a biblical figure.

This small memorial is dedicated to the Perryville State Prison firefighters who perished fighting the Dude Fire in 1990.