[Spivak]

Related question. Can you just photograph a building a sell photos without a license from the architect?

[tom_mellior]

That depends on where you are: https://en.wikipedia.org/wiki/Freedom_of_panorama

Interestingly, for the UK this seems to claim full freedom of panorama, seemingly contradicting the law quoted in your sister comment at https://news.ycombinator.com/item?id=21369261