The Powder Tower The Powder Tower is one of the most remarkable monuments of medieval Prague. The Powder Tower is one of the most remarkable monuments of medieval Prague. The Powder Tower is one of the most remarkable monuments of medieval Prague. Opened: November–February: 10 a.m.– 6 p.m. March: 10 a.m.–8 p.m. April–September: 10 a.m.– 10 p.m. October: 10 a.m. to 8 p.m. Náměstí republiky 5 110 00 Praha 1 - Staré Město +420 725 847 875 muzeum@muzeumprahy.cz www.muzeumprahy.cz