What shall we do tomorrow? Whether you are a local or a visitor, you have asked yourself this question. "Make My Day" is a web application that gives an answer by planning your day in Vienna depending on your interests, weather, opening hours, public transportation, etc. Join in on a walk through this prototype for the "Austria Experience Data Hub". We aggregate 22 different data sources and use machine learning to build individual itineraries. We will discuss architecture, design decisions, implementation details and share our experience with handling touristic data.