1950
地下水道 Kanal 1957
1950
1950
2000
1930
1990
1940
1990
2000
1980
1960
1980
1970
1960
2000
1990
1990
1970
1940
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
2010
2000
2000
2000
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
2000
1990
1990