The US Pavilion.

In contrast to the many opinions that defined the interior of the pavilion, its architecture was the work of one man, Edward Durell Stone.  Stone designed a pavilion composed of four separate buildings, three drum-like volumes and one consisting of joint railroad boxes on stilts, containing the contested exhibit “Unfinished Work” on America’s social and racial problems.  The smallest drum volume held the Circarama Theatre, a circular cinema that put the viewer in the middle of the colourful scenes of a motion picture tour of the United States, composed by Walt Disney.  Connected to the main pavilion, the American Theatre housed a 1150-seat auditorium.  The façades of the theatres had a metal or white ceramic grille, a kind of screening then typical of Stone’s work.