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| The 4th century AD Roman floor mosaic from the ancient city of Serdica found by archaeologists excavating in downtown Sofia [Credit: bTV] |
Archaeologists suggest that the mosaic covered the floor of a central building belonging to the affluent citizens of Serdica, private bTV station informs.
A hypocaust underfloor heating system made of hollow canals used for transporting air heated at a special furnace, was uncovered under the mosaic.
The moisture under the concrete block presents the greatest challenge to archaeologists for the preservation of the mosaic.
Source: Novinite [August 27, 2015]






