It has round inside, 6 letters
Needing to reduce, maybe, 6 letters
Word that, minus a letter, is its own synonym, 6 letters
Building with a dome, 7 letters
Capitol construction, 7 letters
Dome-topped building, 7 letters
Hotel lobby, sometimes, 7 letters
Jefferson Memorial feature, 7 letters
Round, domed building, 7 letters
U.S. Capitol feature, 7 letters
Washington landmark, with the, 7 letters
A building having a circular plan and a dome, 7 letters
A large circular room, 7 letters