Optional
Deity
I'm beginning to have some doubts about the Great Wall. I like to play a peaceful game, researching and trading in the Middle Ages. If the Great Wall can help me keep the peace, it might be useful for me.
On the other hand, I'm pretty sure I have overestimated the Great Lighthouse. Even without that you will get your overseas contacts, if you make an effort. Just build galleys for the shields you would otherwise have spent on the Great Lighthouse.
About the shield cost I should maybe add that since I've started playing at Emperor, I've put all the Ancient Age and early Middle Age wonders at two thirds their original sticker price. Otherwise it's just never a sound decision to build one of those; your expansion suffers too much. Put them at two thirds the price and the balance is back. I can advise it to anyone!
On the other hand, I'm pretty sure I have overestimated the Great Lighthouse. Even without that you will get your overseas contacts, if you make an effort. Just build galleys for the shields you would otherwise have spent on the Great Lighthouse.
About the shield cost I should maybe add that since I've started playing at Emperor, I've put all the Ancient Age and early Middle Age wonders at two thirds their original sticker price. Otherwise it's just never a sound decision to build one of those; your expansion suffers too much. Put them at two thirds the price and the balance is back. I can advise it to anyone!