Temple V stands south of the Central Acropolis and is the mortuary pyramid of an as yet unidentified ruler . The temple stands 57 metres ( 187 ft ) high , making it the second tallest structure at Tikal - only Temple IV is taller . The temple has been dated to about AD 700 , in the Late Classic period , via radiocarbon analysis and the dating of ceramics associated with the structure places its construction during the reign of Nun Bak Chak in the second half of the 7th century .