Architecture
Rome's greatest contribution to the history of art is undoubtedly to be found in the field of architectural design. Roman architecture during the age of the Republic) discovered the round temple and the curved arch but, after the turn of the Millennium, Roman architects and engineers developed techniques for urban building on a massive scale. The erection of monumental structures like the Pantheon and the Colosseum, would have been impossible without Rome's development of the arch and the dome, as well as its mastery of strong and low-cost materials like concrete and bricks.