Some are from missions where turrets can be put on weird places and some from jumping around First City.
Let's JUMP JUMP JUMP!!!
Secret turret in secret facility
Shuttle at New Romulus
Watching Legion on Defera
Head of statue in Chancellor's Chamber...
...is great place for Mokbara
Spying on R&D in First City (maybe someone develops secret weapon)
Where should I go next?
Kitty on fire
Have you played with Ferasan/Caitian? Show me where you've jumped!