and wildest caves. At dusk, a swarm of bats disperses to hunt in the rainforest surrounding Deer Cave. One of the planet’s largest underground passages, it holds more than two million bats.

If life moved underground to escape, caves are a good place to look for ... Since then, she has traveled everywhere from Sardinia to the Sahara, exploring some of the most exotic environments ...

The concrete floor slab gave way and a woman sank into a two-meter-deep burial pit. It happened this morning at the Alghero Cemetery. A 74-year-old woman was walking among the graves on a concrete ...

Swiss-based Energy Vault and Italian coal miner Carbosulcis have announced a plan to develop a 100 MW hybrid gravity energy storage system within an underground coal mine and its 500m deep mine ...

Here are seven underground attractions, mines, caves, catacombs, concrete bunkers and tunnels that are well worth a visit - if you dare. 1. Tham Luang Nang Non, Thailand For 18 days in 2018, Tham ...

They include the Ruakuri Caves, which are home to thousands of glow worms which give the underground world a distinctive light show. A trip to the Waitomo Caves can include a boat ride which takes ...

known for its unique boxwork formations and vast underground network. With over 150 miles of explored passages, it is one of the longest caves in the world. The cave's intricate maze-like ...