The Armour-Stiner (Octagon) House is one of the most visually unique homes in the world. It is the only known, fully domed octagonal residence and the only house which replicates Donato Bramante’s 1502 Tempietto in Rome. The elegantly proportioned Tempietto was built in the form of a Tholos, an ancient classical temple, which complemented America’s third quarter of the 19th-century fascination with classical forms.