S01 city marking/ Gate Tower Clio
In 1990 the city of Groningen celebrated its 950 th anniversary and a contemporary city gate was placed at each main entrance road of the city to mark this. Architect Daniel Libeskind developed these city gates. By the entrance road from the south is an electricity pole with seven metal flames representing the cycle of the week. One flame is lighted on the first day of the week, after which another is lighted every day. In the mornings and evenings, the number 10.40 is illuminated at twenty to eleven, referring to the first time the city of Groningen was mentioned in a deed.