On quiet afternoons in the White House, Curator William Allman feels a certain sense of history. “I’m just here all by myself the way any one of those nineteenth century presidents might have [been].” He also feels “something rejuvenating and invigorating” in the morning when tourists visit the White House, going inside rooms the President actually uses. The White House is in “constant evolution, it’s not frozen in time” because it is a public building.