"The Tachara may be regarded as a museum of the history of calligraphy, because its walls bear inscriptions of several ages: cuneiform texts by Darius, Xerxes and Artaxerxes III, Middle Persian texts by Sassanian scribes, Koofik Persian writings of the periods of the Buyid kings, Saljuquid and Timurid, princes and Safavid and Qajar governors."

The Tachara - Palace of Darius (Tachara of Darius, Mirror Hall) is one of the interior Persepolis Palaces. The meaning in olden Persian is wintry home.
The palace is made of gray stone. It was built by Darius I and was completed after his death in 486 by his son and successor Xerxes I.
Its ruins are immediately south of the Apadana.

This palace was one of the few structures that escaped destruction in the burning of the complex by Alexander. The big stone structures have survived; only the parts of wood have vanished.