Hi there!
I'm looking for a fellow cacher from Athens, who could help me to solve GC1NXEB: Greek-Austrian-Friendship-Cache. -- The architect mentioned in the listing is Theophil von Hansen.
I would be of course happy to help with the Austrian part of the little series, with GC1NG4C: Greek-Austrian-Friendship-Cache.
Best regards from Vienna,
David / BakaGaijin