The Trump administration has placed some of the country’s most iconic and well-known federal buildings on the potential chopping block, including them on a list of more than 400 properties deemed “not core to government operations” and candidates for “disposal.

Eliminating “underutilized” federal office space has become a fixation for Elon Musk and his Department of Government Efficiency operation.

The Henry M. Jackson Federal Building and two other federal campuses in Seattle are on the chopping block as Trump tries to purge federal spaces across the U.S.