Augmented reality (AR) combines computer-generated information with the user's natural senses to enhance their view of the real world. AR works by picking a real-world scene, adding virtual objects to it, and visualizing the digital objects as if they were real. AR has applications in marketing, travel navigation, medical, education, entertainment, and space. While AR allows users to interact with virtual and real worlds simultaneously in real-time and can save time and effort, it is still under development with concerns about privacy, social acceptance, and potential misuse.