Warsaw - Saviour Square
Saviour Square (Polish: Plac Zbawiciela) is a circular square in central Warsaw. Masovian Province, east-central Poland.
Courtesy of SP5KAB amateur radio club, which is the oldest of it's kind in Warsaw.
The antenna visible in the picture is owned by the club and used for amateur shortwave transmissions.
More info at www.sp5kab.pl