free entrance -closed
free entrance - closed today
17.3 - 11.4 1977
18.12 1976 - 13.2 1977
25.9 - 24.10 1976
9.9 - 17.10 1976
2.7 - 15.8 1976
5.6 - 20.6 1976
25.5 - 20.6 1976
18.4 - 28.4 1976
11.4 - 30.5 1976
7.2 - 28.3 1976
20.12 1975 - 25.1 1976
