Geography mixes hard science and the humanities to show how humans have grown over the ages. Cultural geography studies how culture and geography affect one another. Physical geography examines the physical aspects of the world, such as water and landscapes.
Cultural geography looks at food, religion, building styles, transportation and politics, among many other aspects of culture and civilization that are affected by geography. It also focuses on the ways in which culture affects the physical earth. A civilization built in an area protected from invasion by mountains is a prime example of something that would be studied in cultural geography.
Physical geography studies the earth's natural features and landscapes. It focuses on the world apart from the cultures that grow within it. Regional geography, which is type of physical geography, looks at specific regions or locations of the world, such as the Middle East, rather than broader disciplines that scientists may study, such as the way in which a river affects multiple cultures or civilizations.
Geography is an essential building block of the world that most people overlook, but those who study geography break down the separations between the world and its people to examine how the two influence one another over time.