A closed meander of order 120: a closed curve that intersects a line at 120 points, without intersecting itself.

The Real part of z^z^z

A polyhedron constructed by folding along the edges of a Spidron - a figure in the plane made up of two alternating sequences of isosceles triangles.

A plot of the complex valued function (z-2)²(z+1-2i)(z+2+2i)/z³ by Hans Lundmark

Penrose tiling

Plot of the equation Sin(xSin(y)) = Cos(yCos(x)) by Xah Lee

The scintillating grid illusion

Real part of the j-invariant as a function of the nome q on the unit disk

Mobius strip and knot by Rob Scharein (from The Mobius Strip by Clifford Pickover)

A strange attractor by Nathan Selikoff resembling the Eagle Nebula.

Part of a tessellation of the plane generated using Möbius transforms. By Doug Hensley.

Some examples of Chladni patterns

A rhombic triacontahedron and its net

This is a Klein diagram by Francisco Lara-Dammer that represents A5, the group of symmetries of the icosahedron.

A strange attractor by Nathan Selikoff.

Impossible Geometry by Jos Leys

A pattern showing the result of six levels of recursion using the "inflation rules" of Penrose tiles. By L. Kerry Mitchell.

Kürschák's Dodecagon

A visual proof by Kürschák that a regular 12-sided polygon inscribed in the unit circle has area 3. This means that estimating π to be 3 is like saying a circle is a Dodecagon.

"The Easy Way Up" from Impossible Geometry by Jos Leys