The most important monument of Groningen is the Martini tower. The Martini tower is 96,8 metres high. You can climb the Marini tower till the third gallary and will have a beautifull sign over the city. It is the fourth highest tower of the Netherlands. If you want to climb the tower, you can buy a ticket at the VVV shop (Tourist information shop, Grote Markt 29 in Groningen.