New airport in OSM: http://osmtools.org/indoor/#lat=51.2356 … 71526&z=18 (work still in progress).
Very nice! Maybe I should have a closer look at the data and try this with Tallinn airport, or some nearby shopping center... Although I think it might take some effort to get the correct sizes of all the shops and other facilities. Measuring all of them is probably a lengthy task...
SotM Baltics, 3.-4. August 2013, Tartu, Estonia: amenity=university, mappers=yes
Airport's drawn from building plans. You can write to the manager of the building.
Look at the same page in Warsaw:
Main railway station. Nice. Especially shopping mall in level -1