Being a geek is an odd thing. Geeks aren't just about computers, science and engineering. We often find interest in the oddest areas.

I quite like maps.

Maps are a wonderful invention. A handy way of representing the world around us, we take them for granted every day. Yet there can be interesting decisions in making the map - like what to include, how to represent it, and so forth.

Some time ago, I was visiting friends and they gave me a map of London as a gift. This was a kind, thoughtful gift, which was much appreciated as it combined history and maps - two of my favourite things!

And when I got back to my hotel room that evening, and spread it out on my bed to examine it, I couldn't find a date on it at all. Which is why a kind, thoughtful gift kept me awake until two in the morning...