Walking from the center to the Hüdavendigar Mosque I noticed I'd pass two museum, probably small, but interesting nevertheless. One of them is the Karagöz museum (see separate gallery), the other this Forestry or Ormancılık Müzesi. It is housed in a villa that itself is a sight, and shows objects related to the history of forestry in Turkey. The Bursa area is well-wooded, so situating it here has its logic. It is free, and makes for a fine quarter of an hour or so. I found at YouTube (is watching that legal now in Turkey? I think it is) a fine movie which tells more than I can show.
The building was initially used as a residence. Between 1939 and 1949, it housed Bursa Forestry School ("Bursa Orman Okulu"). It served until 1983 as the office of the Forestry Regional Directorate ("Bölge Orman Müdürlüğü"). Following arrangements in 1989, it was converted into museum building.