The humanities are studies that are directly concerned with human values and how humans interact with each other, the natural world, and concepts like God. The humanities encompass areas like cultural studies, history, philosophy, languages, art, music, theater, and religious studies. Key aspects of culture include creation myths that influence a group's worldview, art that expresses cultural values, and similarities and differences in structures like houses, monuments, and sculptures across civilizations. Civilizations develop in river valleys with resources to support large populations, administrative elites, trade, production, and expressions of culture through images and writing.