The Mihrima Mosque in Istanbul, Turkey, was designed by the architect Sinan and the exterior colours change as the sun moves through the day. Arches in the walls support the dome. Inside the windows in the dome let in a great deal of light and the walls also change colour as the sun moves. A mosque is where Muslims go to pray. Mati and Dada discover how things can be different outside and inside, like a geode.
