This website is amazing.  It is a bunch of urban explorers that go through and find old abandon projects.  The picture to the left is a picture of some tunnels that are more than 10 stories below Niagara Falls that used to be part of a hydroelectric project that they abandoned.  The walls are made of red brick and make for some great shots.  This site has a bunch of underground as well as above ground projects that are just mesmerizing to look at.  As the domain leads you to believe it looks like most of these projects are up in Canada.  Pretty interesting stuff…

The Vanishing Point