He is the fictional character from a show in which he travels by a large phone box. It is blue. However, here he is not fictional, but I understand that he is not really a doctor either way. Oooh, perhaps he misses his phone box and so was attempting to create one with a microwave?
Do you have the ability to take a picture? Say with your phone? I can read several languages and may be able to cross reference that with the sky line to find your location.