Imamzadeh Qasem in Tehran is a mausoleum and pilgrimage site, which dates back to the 10th century.
Takht -e- Rostam (Rostam’s Throne) is a volcanic rock cliff and the ruins of a Sassanid era (224-651 CE) Zoroastrian fire temple located 80 km southwest of Tehran near Shahryar county.
Haroun Prison or the Harun al-Rashid prison in Rey is a cuboid structure made of stone and stucco, which dates back to the Buyid dynasty (934-1062).
Imamzadeh Yahya is the mausoleum of one of the descendants of the Shia Imams.
Rashkan Castle is an Arsacid Era (247 BC–224 CE) structure intended to hold the city of Rey.
The Tower of Silence in Rey is where Zoroastrians exposed the corpses of their dead to the sun. This six-meter high structure is made of stone and mortar and dates back to the first millennium BC.
Wall of Rey is a 6,000-year-old structure, which dates back to the Median era (678 -549 BC). Only three kilometers of this defensive wall, which encircled the entire city during the Parthian era (247 BC–224 AD), remains today.