I came across this video on Digital Urbanism.

Filmmaker Craig McCourry spent the last year exploring mega cities around the world. He set some of his footage to Giacomo Puccini’s Nessen Dorma.

httpv://www.youtube.com/watch?v=9trPoj9FxHc

According to McCourry:

There is a certain freedom of roaming a metropolis in search of imagery, striking up causal conversations with strangers, never really knowing how the day will end… Along the way, you do capture some magnificent views and a pocketful of memories.