ARquest is a mobile AR application that overlays historical and educational scenarios onto real-world locations. Users walk through their city, visit marked points of interest, and participate in story-driven quests set in different historical periods. The app includes puzzle-solving, character encounters, and decision-making that affect how the scenario unfolds. It supports three use cases: tourism, where players discover local history and culture; education, where the interactive format supports self-directed learning; and business, where local venues can integrate with quests to increase foot traffic and customer engagement.