12 of 100 key works
Broken Circle – Spiral Hill
Robert Smithson
Emmen, 1971 (photo Monica Boekholt)
The Green Cathedral
Marinus Boezem
Almere, 1996 (photo by Gert Schutte)
The Whale
Allora and Calzadilla
Harlingen, 2018 (photo by Keunstwurk)
The Blue Waves
Peter Struycken
Arnhem, 1977 (photo Aerophoto Schiphol)
Portal
Gert Sennema
Groningen, 1997 (photo Jenne Hoekstra)
The Watchmen
Shinkichi Tajiri
Venlo, 2007 (photo Egon Notermans)
Turning House
John Körmeling
Tilburg, 2008 (photo Peter Cox)
The Dockworker
Mari Andriessen
Amsterdam, 1952 (photo by Stadsarchief Amsterdam)
L’Essence de Mastenbroek
Birthe Leemeijer
Mastenbroek, 2005 (photo by Pieter Polman)
Landing strip for extraterrestrial cultures
Martin Riebeek
Houten, 2003 (photo Michael Kooren)
Polder Level
Michael Beutler
Wilhelminapolder, 2014 (photo Ingrid Fijen)
Sand Guard
Observatory
Rotterdam, 2015 (photo by Hans Elbers)
English 
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