Contrary to the impression given by the street names in the picture - such as Sutton Avenue and Angel Circus - of this being an English city, the scene is actually Portugal's capital city, Lisbon.
The city's Hotel Tivoli Tejo is pictured next to the striking Oriente station, and opposite the Vasco Da Gama shopping centre.
Not only are things not what they at first seem, but our detective also points out that the Lisbon scene has been altered - the 17-kilometre Vasco Da Gama bridge is in the wrong place and the twin tower blocks on either side of the shopping centre have also been moved.
However, perhaps the most suspicious alteration is the fact that the large Lisbon headquarters of O2's competitor Vodafone, which in actuality is opposite the Hotel Tivoli Tejo, is missing. We can only assume this is a competition issue, rather than a reflection of Streetmap's services.