Archaeology in Northeastern Nigeria - Study from the University of Frankfurt which examines what archaeological discoveries in northeastern Nigeria have revealed about the history and culture of the area. Sukur Cultural Landscape - UNESCO World Heritage site. Includes photographs, maps, a description of the site and a justification for inscription. Settlement Archaeology in Nigeria - The history of scientific archaeological research in Nigeria and its relatively recent development. Osun-Osogbo Sacred Grove - UNESCO World Heritage site. Includes photographs, maps, a description of the site and a statement of significance. Ife Pre-Pavement and Pavement Era (800–1000 A.D.) - Article on this ancient Yoruba city in south-western Nigeria. Ife (from ca. 350 B.C.) - Article on this city which, according to the Yoruba people, is where the founding deities Oduduwa and Obatala began the creation of the world. Nok Terracottas (500 BC–200 AD) - The Nok culture remains an enigma. It is one of the earliest African centers of ironworking and terracotta figure production.