Improved cell culture devices and related methods that overcome the limitations of prior devices and methods, by creating devices that can integrate a variety of novel attributes. These various attributes include the use of gas permeable material and medium volumes that exceed conventional devices as well as compartments that can facilitate the long term study of high density cultures with reduced disruption of the culture environment, the ability to study the migration of items of interest including substances such as chemokine, track the movement of cells, and monitor cell to cell interactions.