Dive into the living history beneath Sofia at the Archeological Reserve Ulpia Serdica, where ancient Roman ruins unfold beneath glass walkways. Experience a captivating journey through time as you peer down at centuries-old stone remnants, weathered bricks, and relics telling powerful stories of the Roman Empire’s footsteps in Bulgaria. The quiet, contemplative atmosphere invites travel enthusiasts and history lovers to immerse themselves in a soulful escape, connecting with centuries of heritage amidst modern Sofia's pulse. Witness the layers of time preserved under your feet, fueling fascination and awe with every glance through the transparent platform beneath you.