The former water tower in Hamburg´ s city park, the Stadtpark, built between 1913 and 1915, has been used as an observatory since 1930. The cylindrical, 60-metres high red brick building was designed by the Hamburg architect Fritz Schuhmacher. Europe´ s biggest projection dome (?) is 13 metres high and 21 metres in diameter and made of copper. Apart from regular shows and a permanent exhibition about the history of astronomy, concerts and lectures also take place at the observatory. One can enjoy a wonderful view of the park and of north Hamburg from the observation platform.