For the final scene of “Highlander” (the 1986 movie), the crew did nof return to Scotland for filming. Instead the scene was shot in Wales, Conwy. Sychnant Pass provided the mountains needed for the scene (although somewhat less impressive then those that can be found in Scotland, maybe the production ran out of money?).
On april 25, 2015, Kathmandu was hit by a giant earthquake. A little while after this tragedy, the crew for “Doctor Strange” (2016) arrived for their film. Although major temples were damaged by the quake, they still can be seen in this movie (CGI restauration?).
One of the bridges leading to the temple of Kasthamandap can also be seen in the film.
Central Patan Durbar Square, also damaged by the earthquake, Thamel and New Road have some scenes with Cumberbatch.
Other scenes were filmed in Hong Kong, London and New York.