We are planning to go to the Hofburg Imperial Apartments Tour in August. Should we, can we, buy tickets before we leave home?
Entry is not timed. I see no reason.
I visited the Apartments and Sissi Museum last August and just walked right up and got a ticket, no line and not horribly crowded, maybe around 2 pm.
I visited in June and there was no one queuing. They have package tickets, it may come with entry to other museums, do check them out!