Underground Museum???

I must say, this was my one regret. The day I was
at this museum, it wasn't open and I never made
it back. This museum is 6 stories underground!
How cool is that? The top of the museum is just
part of a patio, but the entire museum is underground! Therefore, I find it only fitting to plan another trip to ensure that I can experience this museum. I'm returning in January! Anyone want to join me?
Pura Vida!