The Six-Tusked White Elephant is said to be a legendary creature.

This is a model of a mutetrahedron.

The 正十六胞體 is one of the regular polytopes in four dimensions.

The 正六百胞體 is one of the regular polytopes in four dimensions.

The 16-cell is one of the convex regular polytopes in four dimensions.

The 600-cell is one of the regular polytopes in four dimensions.

This mutetrahedron has a very unusual shape.

The North American Aerospace Defense Command is responsible for the aerospace defense of North America.

Whenever he faced a difficult situation, he always said, 'The best of the Thirty-Six Stratagems is to run away.'

This is a model of a muoctahedron.