Some daring, possibly insane people have decided to give you a glimpse at the city from angles you've never seen before.

Urban Exploration is a concept that's becoming more and more popular in the age of instant photo-sharing. Sneaking into condemned, hidden, or downright dangerous locations has become a discussion topic and in some cases a point of competition among many online.

As illegal and dangerous as it is, it's also led to some pretty incredible visuals, as documented in this video:

What do you think? Are these people dangerous criminals, artists, complete psychos, or all of the above?