The National Air and Space Museum is undergoing a massive multi-year renovation project that will see all 23 exhibitions being completely reimagined and the addition of new presentation spaces and attractions.

The magnitude of the NASM project, started in 2018, is revealed in this detailed Flickr photo gallery.

The NASM said the transformation of the museum “represents an unprecedented moment in the conservation and preservation of thousands of artifacts, as well as a remarkable evolution of the museum’s immersive experience, with 23 galleries and spaces being reimagined for immersive learning.”

In all, there will be 1,400 new objects on display and more than 5,200 artifacts moved and preserved when galleries start to open in 2022.