Museums often use mobile devices and applications to let visitors explore their exhibits and interact with them in order to make the user experience more immersive and enjoyable. This paper presents a mobile museum guide based on the physical interaction with a dynamic NFC-display, consisting of a grid of NFC-tags and a projected GUI. Visitors can browse tours on the public display, download them onto their mobile devices and use them for the exploration of the museum. The paper presents the design of the museum guide, a first prototype and a preliminary evaluation of its usability and the interaction with a dynamic NFC-display. Categories and Subject Descriptors H.5.2 [Information Interfaces and Presentation]: User Interfaces – input devices and strategies, interaction styles General Terms Design, Human Factors Keywords Multi-Tag Interaction, NFC, mobile guide, learning environments