AnatLab was featured in the NMHM's exhibit installation and debuted on the Museum's 150th anniversary in May of 2012. AnatLab is a virtual anatomy laboratory for medical education. The web-based environment allows users to navigate through human anatomy, using a knowledge base of more than 700,000 annotations covering more than 2,500 different named anatomical structures. The application derives from data in the National Library of Medicine's Visible Human Project, which includes images of a male human cadaver that was first frozen then sectioned prior to photographing and scanning each section. The data was eventually reconstructed using 3D computer imaging software and then used in the AnatLab application. AnatLab was installed on a multi-touch table that offered visitors a unique interactive that contrasted with the natural human specimens installed in nearby exhibit cases.