It’s the smallest model of the largest mosque in the world – Masjid al-Haram also known as The Great Mosque of Mecca. The size of the 3D nano model is 820 µm x 643 µm x 135 µm which is the thickness of a sewing needle. It was printed using microstereolithography with the resolution of 250 nm. It is in the approximate scale of 1:600,000 to real Great Mosque of Mecca.