Answer:

NEMEA

Answer	Crossword Clue
NEMEA	Peloponnesian valley
NEMEA	Where Hercules slew the lion
NEMEA	Mythical lion's home

NEMEA	Panhellenic festival site
NEMEA	Site of the first labor of Hercules
NEMEA	Ancient sports-festival site
NEMEA	Site of Hercules' first labor
NEMEA	Where Hercules slew a lion
NEMEA	Site of ancient Greek games
NEMEA	Site of biennial ancient Greek games
NEMEA	Home of a mythical lion

NEMEA	Valley where Hercules slew a lion
NEMEA	Where Hercules killed a lion
NEMEA	Herculean labor site
NEMEA	Where Hercules fought a lion
NEMEA	Lion's place in Greek myth
NEMEA	Site of ancient games
NEMEA	Site of Hercules's first labor
NEMEA	Valley in Argolis, scene of Greek games.

NEMEA	Hercules slew a lion here.
NEMEA	Where Hercules slew the lion.
NEMEA	Vale in Argolis.
NEMEA	Valley in ancient Argolis.
NEMEA	Where Hercules killed the lion.
NEMEA	Valley of Hercules' lion.
NEMEA	Valley where Hercules slew a lion.
NEMEA	Site of ancient Greek games.

NEMEA	Valley of Argolis.
NEMEA	Valley in ancient Greece.
NEMEA	Site of Hercules' first labor.
NEMEA	Ancient city of Greece.
NEMEA	Historic Grecian valley.
NEMEA	Valley of Greek myth.
NEMEA	Valley of Hercules's lion.
NEMEA	Ancient city of Argolis.

NEMEA	Argolis valley where Hercules killed the lion.
NEMEA	Valley in Argolis
NEMEA	Scene of Hercules's first labor
NEMEA	Home of Hercules's lion
NEMEA	Valley in Greece