Hammershus wikipedia 

Hammershus is Northern Europe's largest medieval fortification, situated 74 metres above sea level on Hammeren, the northern tip and highest 爬坡道, 小山 of the Danish island of Bornholm in the Baltic Sea. 你 can read the history too!
密码: 城堡, travel, tourism, castles, 欧洲, denmark, bornholm, wikipedia, hammershus