Construction workers, digging for heating pipes, stumbled upon a surprising discovery right before the building of the Agriculture Ministry in Sofia.

Two tombs that were most likely connected with the West Serdika necropolis were unearthed in the digs, bTV reported.

Thrilled by the discovery, archeologists explained that the 2-meter-deep tombs were full of human remains, but most had been disturbed. There was just one intact skeleton, experts said.

Despite initial rumors that this could have been the burial site of Bulgarian revolutionary Georgi Benkovski, archeologists said that the bones found were much older than his time.

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