The Kyrgyz Republic's territory used to be a part of the Silk Road, an ancient network of trade routes connecting the East and West for for centuries. You can still find symbols of this in modern Bishkek like its major market or bazaar, Osh bazaar. It's easier to list things you can't find there — Osh bazaar has a lot from fresh flatbread and species to clothing and felt.
Whether Osh bazaar can amaze you or shock you, it definitely won't leave you indifferent. It's not the most safe place in Bishkek too, so going in a group or bringing your local friends would totally make sense.