Other contributors have said "What is inside a medieval town?" is the same question as "What did streets in medieval town look like?" If you believe that these are not asking the same thing and should be answered differently, click here
Towns were filthy, EXTREMELY filthy. There was garbage, human waste, rotting food, etc. Houses were crammed and poorly constructed. It was not a good place to live.
Medieval towns looked basically like Villages today do, they had cobbled streets, although they were mostly pounded earth. Most villagers couldn't read so they would have pictures of what a building...
Land was expensive in medieval towns, so houses tended to be two or more stories tall. Wealthy people had their own, nice houses, but poor people tended to live in rented rooms and apartments. Houses...