A big sinkhole that appeared on Rippey Street in Pittsburgh's East Liberty neighborhood had Pittsburgh Water investigators working until dusk Monday evening, searching to learn more about the cause.

Lucknow: A massive sinkhole, big enough to engulf a truck, got created in Vikasnagar after a portion of the road caved in in ...

A sinkhole is an area of ground that has no natural external surface drainage and can form when the ground below the land ...

They can also happen due to old underground mines.Florida is highly susceptible to sinkholes because it sits above limestone.How big are sinkholes?Sinkholes can range in size from just a few feet ...