Poland does this for their Leonardo (Lady With An Ermine). It is housed in a separate room, tickets are separate and it is sometimes rotated between different m

Poland does this for their Leonardo (Lady With An Ermine). It is housed in a separate room, tickets are separate and it is sometimes rotated between different museums (at least I saw her in two different ones by now). It it really helpful plus it saves money if you don't want to see it.