The document discusses the history and styles of architecture from the Medieval and Renaissance periods. Medieval Gothic architecture featured tall spires, stained glass windows, and vertical lines to honor God. Renaissance architecture used old ideas in new ways with horizontal lines, domes, small round windows, arches, and vaults to show that man and his world are important. It then focuses on the Cathedral of Santa Maria in Florence, which took over 100 years to complete due to the difficulty of constructing a dome until Filippo Brunelleschi won a contest in 1419 and used Roman arch techniques to finally complete the dome between 1420-1436.