Is the museum really closed Monday and Tuesday? Their website says open daily and I bought tickets for Monday.

Starting tomorrow the museum is open 7 days a week again

No off days .. from now .. you can go any days ..

As of 15 August 2022, the Museum is open seven days a week (except Thanksgiving and Christmas).

It is my understanding they are closed on Monday’s. You should call because I believe the hours can be selected from the menu.