Man has developed various architectural styles using megaliths and standing stones, such as Stonehenge from 4000 BC. Ancient Egyptians built pyramids and mastabas for pharaohs. Greek temples had columns in Doric, Ionic, or Corinthian orders. Byzantine architecture advanced the dome design. Romanesque architecture featured rounded arches, vaults, and grand portals while Gothic introduced pointed arches and vaulting. Famous examples include Notre Dame Cathedral.