Pasargadae. perhaps?

From "Gardens of Persia," a book by Penelope Hobhouse listed on amazon.com:

Buildings, water, and plants combine to give the gardens of Persia a beautiful spiritual quality that has served to inspire garden design across time and diverse cultures. Indeed, Ms. Hobhouse begins with the oldest living garden, Pasargadae, created by Cyrus the Great in 550 BC. It represented paradise on earth and spawned other gardens to be seen as settings for sacred contemplation and spiritual nourishment. In later centuries, these gardens evolved further around the world as representations for romance, power, prestige, and symbols of the afterlife.