Boys' High's history society (Arbor Historica) opened its own museum in 1993. Situated in the old Berlyn hostel, the museum houses exhibits from the school's illustrious past. Boys' High is very fortunate to be one of only a few schools to have their own own museum. In die museum you can discover more about the school's history and the numerous famous personalities produced by Boishaai.

It is open on weekdays (09:00-13:00) and entrance is free.

The museum building also houses the Old Boys' Union office and the Sport Academy ofice.