What/where is the location of the (third) picture with two ladies and a very curvy street? That looks like an optical illusion of sort given his POV, or is the street really as curvy and as steep as that? Beautiful shot that one.
It doesn't seem particularly stretched by a "fish-eye" effect, all vertical lines of the buildings remain vertical, it is just a particular effect of the perspective, compare with:
https://upload.wikimedia.org/wikipedia/commons/thumb/4/4d/Os...
https://lokalhistoriewiki.no/wiki/Fil:70._Christiania,_Victo...
http://www.enerhaugen.com/wp-content/uploads/2017/03/Oslo-Vi...
Ok, found one similar: https://www.vartoslo.no/media/uploads/2017/06/Victoria-terra...
[1] https://goo.gl/maps/TNMB6AMVJSA2 [2] https://kart.finn.no/?lng=10.73088&lat=59.91467&zoom=19&mapT...