The White House Christmas tree is pictured in the Blue Room at the White House in Washington, Dec. 1, 2010.

A topiary of the first family's dog, Bo, sits in front of the fireplace in the library during the first viewing of the 2011 White House Christmas decorations Nov. 30, 2011, in Washington.

White House Pastry Chef Bill Yosses explains his design for the nearly 300-pound gingerbread house of the White House, on display in the State Dining Room of the White House in Washington, Nov. 28, 2012.