Climb around the ramparts, however, and find locked doors with big keyholes. Look in and find a nice room with an inviting door to the outer walkways - no access for you.
Peer down the alley, where the houses share a party wall with the City Walls, and see a mannequin on the balcony staring back at you, there midway up, at the center; and then a nice chair on the cobbles for people-watching. This is not a museum city.
The Battle of Murten, see://www.muellerscience.com/ENGLISH/Switzerland.htm/.
In 1476, the Confederation was attacked by the Burgundians from the French side of things; and sent out runners to get help. The other Swiss groups indeed responded, and - to the surprise of the better-equipped Burgundians - the Swiss Confederation combined army won. Here are cannonballs from that battle, still in the walls of Murten.
Battle of Murten, cannonballs, Burgundians defeated, Switzerland
Murtensee, Lake Murten, beyond City Walls, Murten Switzerland
Go outside again, the other side from the cannonballs, and see nice gardens for vegetables and flowers all along the City Walls. Even - what do you call those shaped wall plants climbing up?
In many European cities, there will be an allotment garden area outside or in the town, where people get a small plot and set up a mini-house, not just for equipment, but also for a bed and a chair for a get-away. Gardener's time off.
Dizzying climb up to the ramparts, interior wooden stair.