Well, the one on Aachen is awesome - I already learned a number of cool things. Such as "Aachen Bluestone", a special stone only found near Aachen whose quarries have all been tapped out (which got to be worth something in occult terms), or a cool legend about why Charlemagne was so obsessed with the region.
But the absolutely coolest is the "Noli me tangere" box kept in a relic shrine within the Aachen Grand Cathedral - a box with unknown contents kept next to the clothing of Mary, the diapers and the loincloth of Jesus, and the decapitation cloth of John the Baptist which nobody was supposed to open, and one guy who did open it went blind!
Now I'm reading through Wikibooks for Kenya and Nairobi to get inspriation for a Transhuman Space game. Oh, and I've also discovered that this approach is pretty nifty to get some background information for job interviews...