I haven't talked much about it here, but I have been part of the team organising WordCamp Europe since its first edition in 2013.
After Leiden (NL), Sofia (BG), Sevilla (ES) I have in addition the pleasure and honour to host the next edition in Vienna (AT), where I live, next June, from the 24th to the 26th.
After selling out all our 1700 tickets way faster than expected, we have now increased capacity and the very last batch of tickets was just made available.
You can read more about this and purchase yours here: https://2016.europe.wordcamp.org/wordcamp-europe-grows-to-2200-people-new-tickets-go-on-sale-today/
Looking forward to seeing you all in Vienna in June!