@Sven, thanks for a great weekend event. This is what we have been talking about. It had something for everyone and I personally greatly appreciate it.
I still haven't found the hidden location though, but I'm continuing to look.
As a side note, in my travels on both Colorado V2 and Colorado V1, I have noticed that there are still Viking Villages there. This is not a bad thing however. Maybe you could utilize them in some future events for different purposes? (They look like they can be used for different eras like for the Pilgrims and Columbus. (just suggestions)
Also, I posted some comments about base building in the Survivor section. As yet I have had no comments from the Devs. (As part of the free premium week, I tried my hand at building a base.) I think you will find my comments usable for future adjustments to that aspect.
Once again, Thanks for a great weekend event. Keep this type of event coming. You should consider making double exp a more regular addition to all events.
Have a Great Day!!! 😎