free entrance - closed today
28.3 - 10.5 1992
30.11 1991 - 19.1 1992
8.6 - 25.8 1991
9.2 - 1.4 1991
3.11 - 2.12 1990
6.6 - 2.9 1990
26.4 - 27.5 1990
