We lucked out got same day tickets. I would take a chance. Could be lucky like me. We went right in.
We got our tickets & our enterence time was two hours later. We walked over to the Bureau of Engraving & got free tickets for that too. By the time we were done, we could enter the Holocaust Museum.
Pretty good if you jump online around 6am. Also, even if they are sold out online you can still request them at the visitors desk inside when you arrive. They usually have them. They are $1 online per ticket but free on site. Plan on 2 hours there if you take your time and read and watch everything.
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