The majestic Martini Tower is a true symbol and the tallest structure that Groningen is proud of. Locals affectionately call it "d’Olle Grieze", which in the local dialect means "The Old Grey". The tower is part of the Martinikerk church complex and is an outstanding example of Gothic architecture in the Netherlands.

Rising to a height of 97 meters, this bell tower served as a landmark for travelers and sailors for centuries. One of its surprising features is a slight lean—the top of the tower is 0.6 meters off-center. The facade is decorated with sculptures of significant historical figures, while inside hides a brick spiral staircase and one of Europe's largest carillons.
Today, the Martinitoren is not just a historical monument, but the city's main observation deck, offering a breathtaking view of the city canals and medieval streets. The site is rightfully considered the "pearl of Groningen", attracting history and architecture enthusiasts from all over the world with its austere yet elegant appearance.