University College Hospital is where Alexander Litvinenko was treated and died. It is also where most of the medical staff, restaurant and office workers, friends and business associates etc. who had been in contact with him, were tested for 210Polonium contamination, although urine samples were sent off to the United Kingdom nuclear weapons experts at Aldermaston.
Approximate GPS grid coordinates (the Hospital is a big site):
Latitude: (WGS84) N51:31:30 ( 51.525087 )
Longitude: (WGS84) W0:08:12 ( -0.136788 )