The videos below gives you a general framework on constructing your indoor or outdoor pyramid. The first video is primarily designed for indoor pyramid construction, while the last two delve into outdoor/in-ground installations.
General Building Tips:
This video gives you the basics on constructing your indoor pyramid, although the information is useful for outdoor/in-ground installations as well.
When to Glue and When to Use Set Screws:
Although it is generally preferable to use glue for outdoor installations, set screws bring flexibility to indoor installations.
Tips for In-Ground Installation:
This video will help you with in-ground installation of your Russian PVC pyramid.