Check if you can join a tour at Sahib Mian Hazrat Medressa. If not, this significant building is still worth a photo from the outside.
When you've spent a bit of time at this Kokand historic landmark, why not make your way to Juma Mosque, and Khudoyar Khan Palace? They're not too far from Sahib Mian Hazrat Medressa and also popular with travelers.