necropolis

noun, plural ne·crop·o·lis·es.

1. a cemetery, especially one of large size and usually of an ancient city.
2. a historic or prehistoric burial ground.

noun plural -lises or -leis (-ˌleɪs)

1. a burial site or cemetery

n.“large cemetery” of an ancient or modern city, 1803, from Late Latin, literally “city of the dead,” from Greek Nekropolis, a burial place near Alexandria, from nekros (see necro-) + polis “city” (see polis).