“I have successfully found and "flashed" 101 installations across six different cities.”
Wow, I had no idea that this was even a thing!
Impressive feat though, love this hobby as a concept. I genuinely like the art too... am I right in thinking he was featured in Banksy’s “Exit Through the Gift Shop,” 
RE: Invading Rome - Part 3 of 3 - Chasing Down Invader Street Art