Often, when you stumble upon something strange and have no clue what it is, the first instinct is to ask family, friends, or colleagues. But what if they’re just as clueless as you? That’s where communities like ‘What Is This?’ come in: a space where curious minds share their odd finds and a mix of experts, hobbyists, and everyday detectives work together to crack the case. Keep scrolling to discover some of the most fascinating (and surprisingly educational) mysteries the internet has helped solve!

sillytricia: Houses used to be there, only the chimney survived.

C_N1: DO NOT BREAK IT! Those are filled with a toxic chemical to extinguish fires. Glass Grenade Fire Extinguisher Also, they closed them by melting the glass shut.

TreasureWench1622: It LOOKS like what the Arc of the Covenant

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