Be your own tour guide
Use the fine spring weather to study the old town centre in Køge. Køge is among the towns in Denmark that have the largest number of well preserved half timbered houses from the Renaissance period in its centre, including Denmark's oldest half timbered house from 1527, verified by a date inscription, and the oldest town hall still in use, dating from 1552.
Be your own tour guide and pick up a city walk map from VisitKøge with information about the houses. The map is handed out for free.