During the foundation work for a big 6-story residential building near the Roman Amphitheater in Trier relics of the Roman City Wall came to light. The question was how to react, either to demolish the ancient findings for the construction, or to preserve the ruins for presentation inside the new building. The Roman relics show parts of the former city wall, integrating a round tower and crossed by a Roman aqueduct called Ruwer Channel. Therefore, the relics present interesting components of the ancient city. The concept includes the restored and partly reconstructed relics of the City Wall and its tower as well as it shows how the channel crosses the wall in the basement floor of the modern building. The open space above the relics is traversed by a small gallery. A narrow staircase for visitors leads down to see the details of the archaeological components. Another access to the basement floor leads on the same level from the newly built parking garage to the exhibition. To allow an understanding of the historic situation, a large image of the Roman city wall is painted on the following wall board.