When visiting an exhibition individually, you must wear a medical mask in the museum and follow the AHA rules: keep your distance (at least 1.5 meters), observe hygiene rules.
In addition, if you are participating in a tour or attending an event at the museum, you must follow the rule: vaccinated, recovered or tested. In that case, please have proof of vaccination, recovery, or negative corona test, no older than 48 hours, ready.