Stunning and well preserved. Close to Zainab Market hustle bustle, Holy Trinity Church is a peaceful 18th century church which is functional to date but hardly known to non-Christians. It is sorrounded by big bad walls which keep enthusiasts away. The Karachi Walla knew this building for long but it took decades to get to the other side of the wall.
Holy Trinity Church was built in 1855. It was designed by Captain John Hill of the Bombay Engineers and was one of the first major churches of Karachi. It has unusually tall tower which worked as a lighthouse for the ships arriving at Karachi Harbor. It helped generate funds for the maintenance of the church also. It went under major restructuring in 1902 due to weakness of its foundations. The height of the tower was reduced considerably and the hut style roof was replaced by now visible curved top.
Try being friends with christian brothers. You may hitchhike your way into the church also.