This city names a style of chamber tomb cut into the bedrock of a hillside accessed through a narrow ditch in the ground. A golden dove cup and an electrum death mask named for a letter have been found outside this city’s citadel in the early style of shaft graves of Grave Circles A and (15[1])B. A red marble structure traditionally (15[1])called a “treasury” in this (-5[1])city is the (-5[1])largest (-5[1])of its era’s corbelled beehive tombs. Along with the nearby Tiryns, this city is the most famous example of limestone (*) Cyclopean walls, which the Lion Gate permits entry through. It’s not Troy, but Heinrich Schliemann arbitrarily called a gold artifact found in this city the Mask of Agamemnon. For 10 points, name this Bronze Age city that names the earliest period of peninsular Greek civilization. (10[2]0[3])■END■