Frankfurt's Old Town, also known as Altstadt, is a must-visit destination during your bank holiday trip. Take a leisurely stroll through the narrow cobblestone streets and admire the beautifully restored half-timbered houses. Visit the famous Römerberg square, which is the heart of the Old Town and home to the iconic Römer building. Don't forget to explore the nearby Cathedral of St. Bartholomew, a stunning Gothic church with panoramic views from its tower.