Grossmünster is a Romanesque-style Protestant church located in Zurich, Switzerland. It is considered one of the four major churches in the city and is a prominent landmark on the Zurich skyline.

The Grossmünster was originally built in the 12th century, and it has undergone several renovations and additions over the years. The most notable addition was the twin towers, which were added in the 15th century and are now an iconic symbol of Zurich. The church has a simple, austere interior, with plain white walls and tall, narrow windows that allow natural light to flood the space.

The church is closely tied to the history of the Reformation, which began in Switzerland in the 16th century. The church was the site of many important events during the Reformation, and the teachings of its most famous preacher, Huldrych Zwingli, helped to shape the religious and political landscape of Switzerland.

Today, the Grossmünster is still an active place of worship, and it is also a popular tourist destination. Visitors can climb the towers for a panoramic view of the city, and the crypt houses a small museum with exhibits on the history of the church and the Reformation. The Grossmünster is a must-visit attraction for anyone interested in Swiss history and architecture.