One of germany's largest mosques with stunning traditional ottoman design at Columbiadamm 120 in neukölln. Visitors welcome outside prayer times - just remove shoes and dress modestly (long pants, covered shoulders)

The interior calligraphy and geometric patterns are incredible. Tours available March-October (bookable weekdays), with monthly action days on the second Saturday. Attached cultural center often has exhibitions about turkish-german history

Take u8 to Schönleinstraße then 10-minute walk. Respectful photography allowed in courtyard but ask permission first