The interactive anatomy atlases Voxel-Man 3D-Navigator: Brain and Skull and Voxel-Man 3D-Navigator: Inner Organs are available under a Creative Commons License which covers a wide range of scientific and teaching applications.
Brain and Skull and Inner Organs were originally published by Springer-Verlag about 20 years ago. In contrast to conventional anatomy atlases, they are based on rendering 3D models derived from cross-sectional images. This has both advantages and disadvantages: Since they show the anatomy as it is represented in the data, they cannot emphasize certain aspects as a more abstract anatomical drawing. On the other hand, they allow the human anatomy to be viewed from different angles and layers of structures to be peeled off, providing a superior understanding of their spatial relationships.
The innovative concept was highly praised at the time of publication. Especially the Inner Organs which are based on the high resolution cryosections of the Visible Human Project stand up surprisingly well against later anatomical models.
The apps run on most Windows 10 (and earlier) computers. They can be downloaded from the Voxel-Man website.