(1) Delaroche incorporated a widely admired portrait of Antonello da Messina in his 1841 hemicycle at the Ecole des Beaux-Arts in Paris.(2) This is one of the most successful small classical buildings of its period, with a widely spaced Roman Doric hemicycle , and a copper roof with a bulbous finial for the clock.(3) Minutes before the official announcement in the futuristic hemicycle arena, he gave a thumbs up to his 12-year-old son Peter and daughter Grace as they sat in the gallery.(4) Inside the fabulous wood-panelled hemicycle of the Camera dei Deputati, beneath the stunning Beltranni stained glass windows, 630 Italian parliamentarians are in mid-debate.(5) A cross-axis at the entrance hall opens to the left onto an elaborately shaped dining room - a square with intersecting hemicycles and a half-octagon - and to the right onto a u2018denu2019 with a half-octagonal porch beyond.