[2] For many months of 2019, during the Brexit deadlock, it exclusively hosted TV broadcasts and radio and media interviews.

The park is a common place for television reporters to interview Members of Parliament.

[3] Henry Moore's bronze sculpture Knife Edge Two Piece 1962–65 is in the gardens.

[2] The gardens are a roof to a two-storey underground car park constructed from 1963 to 1964.

[4] The site was originally a tidally flooded bank of the River Thames separated from the College Garden of Westminster Abbey by a medieval wall with a watergate.