My late cat pooped in his tray and now I’m thinking about how empires crumble.

Pigments, their use as a status symbol and the role in colonialism.

A football empire — Empire of the Kop, and my Dad’s own little part in that.

The trickster — Hermes, as told by Homer.

Piles of rubble, gravel or rocks with model cannons buried in them.

On gaining power, the Medici family changed the colour of the Florentine fleur-de-lis from white to red.

The map-based concept behind god games.

The map is not the territory.