Newton's cenotaph is a famous project with utopian connotations, created in 1784 by the French architect Étienne-Louis Boullée, and dedicated to Isaac Newton.
Boullée envisaged the construction of a cenotaph, i.e. a funerary memorial. The building is basically a large sphere representing both the earth and Newton's discoveries.
The Pantheon of Agrippa, also known as the Pantheon of Rome, is one of the architectural masterpieces of the Italian capital and the best preserved building of ancient Rome. The Pantheon was built during the reign of Hadrian in 126 AD. The rectangular façade conceals an enormous dome with a diameter larger than that of St. Peter's Basilic.