 The biggest challenge of the building was accommodating all of the artifacts in the right spaces. Much of the rest of the building after the first story is mostly collections. The first level above grade is administrative and there's some labs in there. But after that it's mostly storage. It's a very strong building, it's very robust. The floors are quite thick, large columns, it's dealing with a lot of heavy loads. As you can imagine fire trucks and the like, farm machinery, old generators, things like that. There's one area on level one that we reinforced even more to have a greater slab capacity to deal with some of the extra-large artifacts. There's challenges in scale on the site. It's a very long site, it's a very long building that we've been designing. It's very close to the entrance of the museum. So one of the things we did to relieve that proximity was to create the public space of the plaza that allows the plaza, which was existing from the museum design, to expand and provide a really great public space.