The thesis deals with the topic of teaching history outside of the classroom and it offers a particular example of field-based lesson plans for the Krapina Neanderthal Museum and Hušnjakovo site. The main aim of the thesis is the question: “How to design a lesson plan for extra-curricular history teaching in museums and on historical sites that would be based on the principles of active and meaningful learning?” The beginning of the thesis paper explains the concept of extra-curricular teaching and lists its various types, it also provides an analysis of the advantages and challenges that extra-curricular teaching presents to teachers and professors. Subsequently, an explanation of active, meaningful and discovery learning of history is provided, with an emphasis on the development of historical thinking skills. Historical thinking is explained in more detail based on the historical thinking concepts. Museums and historical sites are underlined as particularly suitable for extra-curricular history teaching which encourages active and meaningful learning. After stressing the importance of extra-curricular history lessons, the thesis provides an overview of the relevant knowledge on the subject of Neanderthals, and it provides the layout of the Museum’s exhibition and the Hušnjakovo site. The thesis reviews the workshops provided to visiting schools by the Museum and offers comments on the workshops from the point of view of active and meaningful history learning. In the fourth chapter, we give an example of a lesson plan for extra-curricular teaching in Krapina, for freshmen of general education grammar schools. The plan is divided into three fundamental stages, namely preparation, implementation and evaluation. An important part of teaching outside the classroom is group work. While engaging in collaborative work, students would explore the Museum and do tasks designed to encourage active and meaningful learning of history.