Missouri’s Meramec Caverns feature rare rock formations, rich history, and a colorful fall landscape above ground.

They can be cold and ominous, and can feel like you're exploring an entirely different world or some far-off planet. While ...

If you've ever driven through Iowa and wondered what there is to see beyond the 15 million acres of row corn, you might consider looking below the surface. Incredibly, the so-called Tall Corn State is ...

A HEART-SHAPED lake in one of the UK’s most loved beauty spots is set to become an underground attraction. Located in the ...

Nestled in the Sahyadri hills of Maharashtra, the Ajanta Caves are an extraordinary ensemble of 30 rock-cut Buddhist sanctuaries dating from the 2nd century BCE to 480 CE. These caves are celebrated ...

It’s official – the Lake District is getting an new underground zipwire. After two years of rejections and opposition, plans for the ride at Elterwater Quarry have been given the go ahead by a high ...