The Saikū (斎宮) was a palace complex located in what is now the Takegawa neighborhood of the town of Meiwa, Taki District, Mie Prefecture, Japan.

The town was built on a grid structure based on Chinese traditions and consisted of several large blocks of 120 metres in length, surrounded by high wooden walls.

A large number of shards of various earthenware, green glazed pottery, and circular inkstones were found, followed by the foundations of many structures.

[3] Further excavations take place annually on a relatively small scale, with much of the Saikū site still untouched due to its vast size.

In addition to the museum, a reconstructed Heian period residence, known as Itsukinomiya Hall of Historical Experience, has been built next to Saikū train station.