Fractals - Useful Beauty: A webpage with information about and images of fractals. Nice and simple illustrations and explanation of recursive geometry.
The Geometry of Fractal Shapes:
The Pythagorean Theorem - Perfect Right Triangles : A webpage dedicated to the Pythagorean Theorem and perfect right triangles. Simple but clear.
The Platonic Solids:
Archimedean Solids: A webpage with an excerpt from the book with the first known mention of the 13 Archimedean solids.
Stellations of Platonic Solids:
Metatron’s Cube and Platonic Solids:
Polyhedron Stellations: A webpage with an explanation of stellating polyhedrons with illustrations.
The Flower of Life: A webpage of information about the Flower of Life with images of it from all around the world.
Other Sources
Cosmic Light What is needed is a way to conceptually illustrate the scientific and mystical principles involved that does not necessarily require background in physics or metaphysics.
World Mysteries - Atlantis Site with huge amount of information on Atlantis. Also covers other topics from the Ancient World.