The site navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move across top level links and expand / close menus in sub levels. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items.
Below the Statue of Freedom is a thin section of the Capitol Dome called the Tholos. Behind the 12 columns and windows are four 300-watt lamps that illuminate when Congress is in session at night. This wood model of the Capitol features an internal light.