text:  By the 7th century , there was no active <unk> presence at any Maya site and the center of <unk> had been razed by 700 . Even after this , formal war attire illustrated on monuments was <unk> style . <unk> Chan K 'awiil I and his heir <unk> 'in Chan K 'awiil continued hostilities against <unk> and its allies and imposed firm regional control over the area around <unk> , extending as far as the territory around Lake <unk> <unk> . These two rulers were responsible for much of the impressive architecture visible today . 
  