Acarta is a field guide to architecture, buildings, public art, and landscape architecture, helping curious travelers discover notable places and understand who created them and when. Its collection includes more than 16,000 places across 350 cities, associated with 7,500 architects, artists, and landscape architects. Entries feature examples ranging from historic monuments to contemporary works, with details such as location, date, creator, photographs, and architectural style.

Available on iPhone, Android, and the web, Acarta supports exploration, trip planning, and sharing. Users can find nearby places on a map, plan walks with friends, save locations, organize photographs into albums, and share discoveries. They can also log visits with GPS-verified check-ins, collect badges, follow friends, and explore themes based on styles, cities, or creators. Pro users can download entire cities for offline use. Additional features include batch photo matching through EXIF coordinates, multilingual interfaces in nine languages, and human moderation of submitted edits and flagged images. Acarta is designed to make architectural discovery more personal, social, and rewarding.