One of the best things to see whilst in Stockholm are the metro stations. I did a little bit of research beforehand and they looked interesting enough, but let's be honest who wants to spend most of their time underground? Turns out, this guy! In person they are incredible.
Monteliusvägen is a 500-meter long (quarter mile) walking path with a number of magnificent views. This is looking towards the old town of Gamla Stan and Skansen.