Scientists have found what may be the largest spiderweb on Earth, and it’s holding more residents than most small towns. If spiders creep you out, this is not for you. Inside an underground chamber called Sulfur Cave, along the border of Albania and Greece, more than 111,000 spiders share a single interconnected web spanning about 1,140 square feet.

The discovery, published in Subterranean Biology, documents a massive colony living in total darkness, inside a cavern thick with hydrogen sulfide. The researchers counted roughly 69,000 Tegenaria domestica—the same house spiders that hang out in basements—and 42,000 Prinerigone vagans. Together, they’ve built a vast, living network of silk that binds the entire colony together.

“The natural world still holds countless surprises for us,” Istv

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