Dome is a curved roof structure rotated about central vertical axis. Term "Domus" means "house" in Latin, later became "revered house". First known domes were 6-meter semi-domes in Pompeii 200 years before Pantheon
Neoclassical style emerged in late 18th century, lasting until late 19th century. Style borrowed from ancient Greek and Roman architecture. Contrasted with Baroque and Rococo's lavish, decadent designs
Renaissance architecture emerged between 1400-1525 in Europe. Style developed first in Florence, led by Filippo Brunelleschi. Term "Renaissance" derives from Vasari's 1550 book "Lives of Artists"
Spire is a tall, slender structure on top of building roofs. Can have square, circular, or polygonal plan with conical or pyramidal shape. Made of stonework, brickwork, timber, metal, or ceramic
Corbel vaults with horizontal stone layers appeared in Mycenae around 14th century BC. Real vault construction with radially joined stones was known to Egyptians and Assyrians. Egyptian brick vaults were used from early 3rd millennium BC
Roman architecture flourished from 509 BC to 4th century AD. Roman concrete revolutionized construction with arches and domes. Classical orders became decorative rather than structural. Most major achievements occurred from 40 BC to 230 AD