Technically if you have enough gems you can buy a second pergola as well.
claupu is correct on this one... If you were around to build one during Thanksgiving '13, then you can buy a second one in the market.
If you weren't playing then and didn't BUILD the first one, it doesn't matter how many gems you have cuz the pergola is only available in the market for you to purchase ONCE.
That's intriguing I didn't even realize this. I suppose this means I could at some point in time also get a second kingdom inn (useless since earth wisps are reasonably plentiful) and reindeer stable (slightly more useful since it once again drops ice cream and sugar which can relieve the strain on your kitchens but only once per day).
Keeping my fingers crossed for this to start tomorrow
Duchess of Zoe's Castle in the Hidden Hills of the Thuakie Nation
⚔⚔⚔ Crystallized sword #26 ⚔⚔⚔
Honored member of The Thuakie Sword Society.
I don't think it'll be an actual event this soon after another one. Probably just a quest chain to build a new something