Week 1

132 Rhombic faces	Rhombohedral	Icosidodecahedron
Rhombic Dodecahedron	rhombic icosahedron in regular octahedron in regular tetrahedron in cube in rhombic dodecahedron	Rhombic Triacontahedron

Week 3

Great Rhombicuboctahedron	Rhombic Dodecahedron By Half-sphere	Rhombic Dodecahedrons in Icosahedron
Rhombohedrons in Dodecahedron	Small Rhombicuboctahedron	Square cupola
Triangular Cupola	Variations of Deltoidal Hexecontahedrons	Mimic WolframAlpha logo

Week 4

5 Cube inside Regular Dodecahedron	Dodecahedron by Icosahedron	Great Rhombicosidodecahedron
Octahedron 5-Compound	Samll Rhombicosidodecahedron	Tetrahedron 5-Compound

Week 5

Continuous Decompositions of a Cube into Six Congruent Parts	Continuous Patterns on Dodecahedron Projected by the Cube	Regular Dodecahedron Inside Cube
Regular Octahedron Inside Cube	The Large Regular Dodecahedron Contain A Cube	The Large Regular Octahedron Contain A Icosahedron
The Large Regular Tetrahedron Contain A Icosahedron

Week 6

Cube Projected on Regular Dodecahedron	Deltoidal Hexecontahedron	Deltoidal Icositetrahedron
Shadow of a Cube Cast on Rhombic Dodecahedron	Tetrahedron Projected on Cube	Tetrahedron Projected on Regular Tetrahedron

Week 7

Asymmetric Kaleidocycle	Inspired by Paper Folding	Jitterbug
Kaleidocycle with Asymmetric Polyhedrons	Kaleidocycles-4	Kaleidocycles-5
Tight Kaleidocyle

Week 8

A Ellipse in 3-Dimensional Space

Week 9

Common Tangent Cones of Three Spheres

Two Perspetive Quadrilaterals Having One Point in Common

Desargues' theorem

Week 10

Three-Circle Theorem on Sphere

Trajectory of projected point

Inversion of trajectory from a sphere onto a sphere

Week 11

Steiner Porism II

Steiner Porism

3D Poncelet's Porism

Week 12

A Chain of Four Circles Each Tangent to Two Fixed Intersection Circles	Triangle Torus and Tangent	villarceau circles 2
villarceau circles	villarceau circles-12	3D Coaxal circles

Week 13

Inversion

ball

Inversion of 4 tangent circles on a ball

Week 14

20 Inscribed Circles of Faces of Icosahedron Inverted	Cricles Inscribed on Faces of Dodecahedron Inverted	Inversion of Inscribed Circles of Faces of Great Rhombicuboctahedron
Inversion of Inscribed Circles of Faces of Tridiminished Icosahedron

Week 15

24 Circles on the Same Plane, Each Touching Four Others

24 tangent circles on a transforming cube-octahedron

Inversions of Incircles of Faces of Octahedron