"artist"=>"Niels Albers","material"=>"wood","tower:type"=>"observation"
"material"=>"bronze","start_date"=>"1970","artist_name"=>"José Pirkner","artwork_type"=>"statue"
"material"=>"bronze","start_date"=>"1986","artist_name"=>"Taeke Friso de Jong","artwork_type"=>"statue"
"start_date"=>"2011","artist_name"=>"André Kruysen","artwork_type"=>"sculpture"
"material"=>"granite","start_date"=>"2014","artist_name"=>"Gaëtane Scholten i.s.m. artists from Arte Ateliers","artwork_type"=>"statue"
"artist_name"=>"Judith Pfaeltzer","artwork_type"=>"statue"
"material"=>"bronze","start_date"=>"1982","artist_name"=>"Jan Vermaat","artwork_type"=>"statue"
"material"=>"Terracotta","start_date"=>"1996","artist_name"=>"Hans van der Pennen","artwork_type"=>"sculpture"
"material"=>"bronze","start_date"=>"1978","artist_name"=>"Ineke van Dijk","artwork_type"=>"statue"
"material"=>"concrete;bronze;wood","start_date"=>"2003","artist_name"=>"Jan Ros"