About how long does it take to walk through the whole place?

Yes. 2 hours plus lunch break.

Hour, hour and a half

With little kids and a lunch break - 3 hours.

My family spent about 2 hours

90 min if you spend a little time at each exhibit

@Chelsea Medina It took us avout 1 hour or so.

Just a few hours

Really depends on your pace and how long you look at things. You could get through the entire thing in 45 min, but usually i take about 3 hours

It took my family and I like 2.5 hrs to walk through and that was taking our with pictures and all 3 hrs tops of you really drag it out but good amount of time

Thank you all!!!!