Can anyone link me to tutorials dealing with perspective in buildings structures

Question:

Can anyone link me to tutorials dealing with perspective in buildings structures and other architecture?

I'm having a little trouble with perspective on these things. I can fake it, but I'd like to know if there is a method to drawing structures with precision using math, a ruler, and maybe a compass.

Best Answer - Chosen by Asker: This is my response to a similar question posted a few months back:

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Here is a link to a guide for one-point perspectives:

http://www.olejarz.com/arted/perspective...

Two-point:
http://mathforum.org/workshops/sum98/par...

One, two, and three-point perspectives:
http://www.khulsey.com/perspective_basic...

Good luck!