The deepest free-fall pit in the lower 48 United States, the Fantastic Pit features a staggering 586 feet (179m) drop - a ...

The cave, located in the separatist region of Abkhazia ... But finally, on October 19, Kasjan dropped down a pit later dubbed Millennium and looked at his altimeter. He had passed the 2,000 ...

Also called "dikengyuan" in Mandarin, which means "pit courtyards," the homes are a type of cave dwelling ("yaodong") commonly found in the Loess Plateau in northern China. "Academic literature ...

How deep is the Bottomless Pit in Mammoth Cave? “The Bottomless Pit is only about 105 feet deep, but back in the early 1800s, when (settlers) were first exploring and touring the cave ...