optical illusions and architecture
1.

this incredible picture was captured by a flickr user in california whilst at work. a fog descended just as the sun set behind the building in shot. the result - one of the spookiest photographs of a building you’ll ever witness.

If you'd like a little reference for what this looks like without the ethereal light and fog, check it out here.
7.

in case you’re unaware of the trick, all of the orange lines are parallel.

Why would you do this to your building?