From out of our kitchen window we could track how a pit was dug in the lawn and a foundation was laid. Then they built a brick wall on top of it, and omitted bricks in certain parts to spell out the word JETZT ("now"). Since summer wasn't yet over, they tore down the wall and restored the lawn once again.
"JETZT II" (NOW II),realized in Cologne (1995), with support from:
Bureau of green spaces (Grünflächenamt) Cologne; Fa.Hebel Porenbeton, Cologne; Jürgen Fehlau, certified engineer, Berlin; Karl Jaehrling (Portuguese national dart-player)