Saint Rumbold's Cathedral in Mechelen, Belgium, is an impressive Gothic structure known for its towering belfry and historical significance. Visitors can enjoy breathtaking views from the top of the tower, which involves climbing over 500 steps, so be prepared for a bit of a workout. It is advisable to visit during the spring or fall for more comfortable weather, but the cathedral remains open year-round. Entry to the cathedral itself is often free, while there is a modest fee to climb the tower. Allow around 2-3 hours for a complete visit, including the tower climb. While you can explore the cathedral solo, joining a guided tour can provide valuable insights into its rich history and architecture. It's conveniently accessible from Brussels by train, taking roughly 20 minutes, making it an easy day trip. No need for advanced bookings unless you're part of a group.