1) Cultural influences are reflected in architectural designs. For example, famous buildings in different civilizations, such as the Parthenon in Greece and the Egyptian pyramids, reflect key aspects of those cultures like the importance of democracy and an authoritarian rule, respectively.
2) Religion also influences architecture through sacred structures designed for worship and through principles that guide lifestyle. For example, the House of Wisdom library incorporated values of the Islamic Golden Age like education and cultural sharing.
3) A city's culture can also be shaped by its architecture when new designs are built for specific functions. For instance, the construction of casinos and hotels in Las Vegas transformed its culture from a small town into a major entertainment hub.