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Mara Kortenkamp, Erin Henning and Anna Maria Hartkopf give us a tour of Polytopia, a home for peculiar polytopes

You won't bee-lieve it

The definitive chart of the best Chalkdust regulars

Using graph theory to predict who will sit the iron throne

Behind today's door... a good joke!

Make your own treasures, guaranteed to be priceless on a future episode of Antiques Roadshow