900-year-old mosque in Iran is covered in millions of pieces of mirror

A 900-year-old mosque in Iran, called Shah Cheragh, is covered in millions of small pieces of mirrors that reflect light from all directions. The mosque houses the shrines of Ahmad ibn-Musa and Muhammad ibn-Musa, who were killed at the site in 835 AD. Reflections of the marble floor and Iranian carpets can be seen in the mirrors.