but the byzantine empire collapsed in the 15th century, and hagia sophia was turned into a mosque. christian mosaics were plastered over, and new religious symbols replaced the old. this church was built to face jerusalem. mosques face mecca. when hagia sophia became a mosque, they couldn't move the church, but they could move the focal point of the praying. notice how the prayer niche is just a little bit off-center. that's because it faces mecca. ♪ follow the sky, way beyond the river. ♪ >>infinity hall live presents buckwheat zydeco. >zydeco music, we get back to energy, energetic. and it's based on the rhythm and blues, you know. when you're playing up tempo songs or slow songs it always have that energy and certain