Pieces of the Roman stone collection owned by the Museum of Tata were amassed from the entire county, but mainly from Azaum (Almásfüzitő), Szomód and Környe. The carved altar stones, inscribed tablets and embossed tombstones are located in the yard of the castle accompanied by sarcophaguses and wood carvings. The most beautiful stone carving, a pole with God figures carvings in both sides, is placed in front of the castle.

The room where the Roman exhibition is held opens from the stone collection. This room introduces life in the Roman province, articles and cultic objects. Terra sigillati, glasses, bronze statues, ceramics and bronze pots, jewellery and a military mask is part of this showing.

In the room upstairs, the reconstruction of a room with frescoes once located in Briegetio can be seen. Fragments from the 2nd century AD were found in 1961. The reconstruction of the frescoes took over three decades. Most of the scenes are involved with Greek mythology.

Carvings from the era of the kings Zsigmons and Mátyás are located downstairs, as well as relics from the Benedictine monastery of Vértesszentkereszt from the 12-13th century.

In an additional room memories from the middle ages found in Tata and its surroundings are displayed. Finds from the mansion and circle shaped church found at Öreg-Kovács Hill are located in this room.