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 B. A red marble structure traditionally called a “treasury” in this city is the largest of its era’s corbelled beehive tombs. Along with the nearby Tiryns, this city is the most famous example of limestone (-5[1])(*) Cyclopean walls, which the Lion Gate permits entry through. It’s (-5[1])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[3])■END■