Shāh-é-Chérāgh (Persian for "King of the Light") is a funerary monument and mosque in the city of Shiraz, Iran. It houses the tomb of the brothers Ahmad and Muhammad, sons of Mūsā al-Kādhim and brothers of ‘Alī ar-Ridhā.
From the outside it looks like a traditional mosque but the interior is mind blowing! Everything is covered in intricate mosaics of mirror & coloured glass.
Photos via oldwildchild.livejournal.com
Here's a video tour if you wanna get mesmerized by the sparkle: