Reza Abbasi Museum

a tad further north-east from the centre of town, it contains beautiful ancient calligraphy, pottery and jewellery.
Telephone: 863 001, open only on Saturdays 

More Places to visit in Tehran
Ashkan Mountain
Azadi Square and Tower
Baharestan Square
Emam Khomeini Mosque
Glass and Ceramics Museum
Golestan Palace and Gardens