Probably the most well-known area of Tanzania, this park covers 14,763 square kilometers (5,700 square miles) of dry rolling grassland in the south and rocky hilly areas in the north. This area boasts the best wildlife viewing and is Tanzania’s oldest national park, as well as a UNESCO World Heritage Site. Over two million animals participate in the Great Migration, where wildebeest, zebras, and gazelles migrate from the Serengeti to the Maasai Mara Reserve in Kenya.