Excellent vantage point to enjoy the spectacle of the city seen from above, the torre Troyana, or tower of the Clock agreement, is one of the symbols of Asti and is close to the palazzo Ducale or Governor, overlooking piazza Medici. The construction takes place at the end of the 12th century and towards the middle of the 13th century it became the property of the family Troya. Between 1250 and 1280 is complete with Battlement. Throughout the 19th century, the Bell Tower marks the hours, the retreat for the night and signal the opening of schools. In primitive times, indicates the closure of shops and the punishments which are imposed on the public square.
Inside, a staircase with 199 steps allows the visitor to reach the top of the battlements. The Bell, which still marks the passage of time, is one of the oldest in Piedmont.