The National Museum in Nairobi is an educational way to spend a few hours on a city stopover. The museum displays diverse cultural and natural history exhibits including more than 900 stuffed birds and mammals, fossils from Lake Turkana, ethnic displays from various Kenyan tribal groups, and exhibits of local art. In the Geology Gallery, visitors can explore an impressive collection of rocks and minerals and learn about tectonic plates and the life cycle of a volcano. The Hominid Vault contains a collection of prehistoric bones and fossils, including the preserved fossil of an elephant.