Groningen Cathedral, officially known as Martinikerk, is a historic church located in the city of Groningen, Netherlands. It was originally built in the 13th century and has undergone several renovations over the years. The cathedral is known for its impressive Grote Markt tower, which stands at 97 meters tall and offers panoramic views of the city. The architecture of Groningen Cathedral features a mix of Romanesque and Gothic styles, showcasing intricate details and beautiful stained glass windows. It serves as a prominent landmark in the city and is an important site for both religious services and cultural events.