See Recurring Quest Sample Video Click Here (AGE - LMA, Château Frontenac Level 10)

Level up Château Frontenac to 60+ and say goodbye to supplies factories, say goodbye to goods factories (of your era), say goodbye to houses (if you have innovation this GB will give you more gold than all your houses together! 

In the oceanic future gives you more than 1,000,000 gold if the random reward gives you the big gold pack.)  and say hello to a lot of free space in your city and say hello to a lot of diamonds!

When you finish the final mission of the main missions of any era/age, that mission gives you 200 diamonds.

At level 60 those 200 diamonds will be 1000 diamonds! and some events also reward you with diamonds when you complete some missions!

So if you want more space and more diamonds, this GB is your best option!

With this GB and doing guild expedition, you don't need to spend real cash to get all diamond expansions, you only need patience!