Can you purchase tickets at the museum or must you purchase online?

You can do both, on line purchases makes it easier to get in.

And the line is slow

You can purchase at the door but online will be faster to get in.

You are absolutely able to purchase tickets at the museum. I did so with no hassle, though that depends on how busy the museum is.

Tou can buy either way but you may still wait as they only let in small groups at a time due to elevator.

You can buy them on site but we had to wait in a line for about 15 minutes. Next time we go we will get the tickets online in advance.

You can buy there. $16

Both, but I'd purchase online.

I recommend online. No wait, you just walk in.

Both are fine, but there can be a line at the ticket counter.

Yes either way

You can buy them at the museum