Recreational Mathematics (David Eppstein) (Popularity: ): An extensive list of web resources for recreational math. Famous Curves Index (Popularity: ): Curves you've heard of and curves you haven't, from Astroid to the Witch of Agnesi. Mathematics Museum (Japan) (Popularity: ): At Mathematics Museum (Japan) you would be surprised how interesting mathematics is. You will find exhibition rooms produced by Japanese researchers and educators. Table of Numbers Problem (Popularity: ): Given a m * n rectangle, place all numbers from 1 to mn that minimizes the sum of the products of rows and columns (both in Spanish and English). Mathematical Spectrum (Popularity: ): Mathematical Spectrum is a magazine for students and teachers of mathematics in universities, colleges and schools worldwide. It may be read by anybody interested in mathematics as a recreation. Iamond (Popularity: ): A page on polyiamond puzzles. Includes many pages on tessellation. Roman Numerals (Popularity: ): Contains a introduction to Roman numerals including a translation of the digits used and a converter which can convert decimal to Roman numerals and vice versa. Recreational Mathematics Forum (Popularity: ): A forum for posting messages about math recreations. Hosted at Delphi. The Aesthetics of Symmetry (Popularity: ): A brief digression into how people perceive symmetrical patterns -- what makes them boring, interesting, or overly intricate MAA Library List in Recreational Mathematics (Popularity: ): Book list split into categories. Includes title, author, publisher and date information about each book.