Postcard NL-249057 CindyNederhorst Netherlands 14 Nov, 2009 7 days 4,620 miles tiggerski U.S.A. 21 Nov, 2009 Loading map... The Defence Line of Amsterdam. mdkrouwel said: posted over 10 years ago No, this is actually Seventeenth-century canal ring area of Amsterdam inside the Singelgracht. You need to sign in to leave a comment!