What's it like: It's a weird one, because it's not actually there anymore. There are chunks of it dotted around the city and Checkpoint Charlie has been recreated, but you have to imagine the scale and the impact of it, and what it would have been like to live with an enormous wall in your city.
Where: Berlin, Germany
When: March 2007
How: Pete had always wanted to visit Colditz, so we did a tour of former East German cities - we started in Leipzig, then Dresden, and then finally Berlin. We also visited the Reichstag (221) and the Brandenburg Gate (435).
Worth noting: There's a Berlin Wall Trail that you can do by bike and a memorial museum - we didn't do either of them but I think they'd be useful.
Place in the 2015 edition: 63