The Archives were physically relocated to the Smithsonian Castle, and received separate line-item funding.

The mill cut the red sandstone for the Smithsonian Castle.

In 1908, the statue was brought back indoors when Congress transferred it to the Smithsonian Castle, where it remained until 1964.

He also played tennis frequently at the former tennis courts at the Smithsonian Castle.

The building has been described as similar to the Smithsonian Castle.

This decision was announced publicly at a press conference held at the Smithsonian Castle on March 15, 2008.

"He who comprehends the Smithsonian Castle comprehends the universe."

The Smithsonian Castle houses the administrative offices of the Smithsonian.

Gray reached the outer doors, a side exit to the Smithsonian Castle, and pushed to freedom.

The painting, by James Roberts, is now on display in the crypt at the Smithsonian Castle.