Borobudur wonder gives happiness bonus empire wide rather than just the city it's built in.

[CliffCo]

Just built this wonder for the first time and realized it gives happiness to your quarters in your entire empire not just the city it's built in. Wish i'd realized this sooner, as this is a major game changer.
Its description doesn't state empire wide so i just assumed it was only for this city.

 

[Boris Gudenuf]

Just built this wonder for the first time and realized it gives happiness to your quarters in your entire empire not just the city it's built in. Wish i'd realized this sooner, as this is a major game changer.
Its description doesn't state empire wide so i just assumed it was only for this city.

That was noted in the Thread on Exploration Age Science Golden Age, in regard to the fact that Borobodur therefore provides potential extra bonuses to precisely those tiles (Quarters) you are trying to build to 40 points of all kinds for the Science Legacy path. To quote one post there:

"Borobudur is really very amazing. Not only do its effects affect our entire empire, they are also very powerful. All Towns that have grouped Ageless buildings like the Granary and the Saw Pit together will receive 2 in Food and Happiness. It is possible to have 3 to 4 Quarters per Town, therefore 6 to 8 free Happiness. Per Town!"

- And, of course, extra points towards the 40 required for the Science path in each and every Quarter Everywhere.

 

[CliffCo]

That was noted in the Thread on Exploration Age Science Golden Age, in regard to the fact that Borobodur therefore provides potential extra bonuses to precisely those tiles (Quarters) you are trying to build to 40 points of all kinds for the Science Legacy path. To quote one post there:

"Borobudur is really very amazing. Not only do its effects affect our entire empire, they are also very powerful. All Towns that have grouped Ageless buildings like the Granary and the Saw Pit together will receive 2 in Food and Happiness. It is possible to have 3 to 4 Quarters per Town, therefore 6 to 8 free Happiness. Per Town!"

- And, of course, extra points towards the 40 required for the Science path in each and every Quarter Everywhere.

Guess I hadn’t read that post as it was a pleasant surprise once I built it.