What does obsolete mean for buildings?

[Frodius]

I recently made the jump to prince and I am trying to get a better grasp of certain game concpets that as far as I can tell, aren't explained very clearly anywhere.

I typically use random leaders on a shuffle map, and in the most recent game I started as Brennus with a stone deposit in the first ring of my second city. Since I am playing a charismatic leader with a UB that obsoletes, I am wondering what exactly happens when a building becomes obsolete. I know that I will not be able to build them anymore, but what about the bonuses they provide?

More specifically, I considered making a run at stonehenge for flavor purposes. However, when Stonehenge obsoletes, I know that the monuments disappear, and I will lose my bonus happiness that goes with my charismatic trait. If instead I built monuments in each of my cities, will I keep the happiness bonus when I research astronomy, or will I only keep the culture.

Also, what happens to the Duns that I build? I wanted to try combining the Duns with enough wonders/civics/GG's to pump out lots of guerilla 3 gunpowder units, but I wonder if they will continue to start with guerilla 1 after I tech gunpowder.

I figure if I can still take advantage of the Duns in the gunpowder age, with the stone I may actually build a number of them. In fact, if I can take advantage of them in the gunpowder age I may consider a game as Churchill of the Celts (once I get some more experience on prince) to try to really abuse the promoted gunpowder units as well as the wall overflow trick which I have never tried.

Thanks for the help, and if none is forthcoming, I'll post what I find out by experimenting in this game.

 

[r_rolo1]

Obloslete buildings ( and wonders ):
-retain culture producing ability
-retain GPP producing ability, if appliable
-continue enabling missionaries production , if appliable ( OFC )
-lose every other ability they had before obsoleting

 

[RRRaskolnikov]

You can't build the buildings anymore and all effects disappear exception of cultural output.
So your monuments will still make +1 (+2 after 1000 years) culture, but you won't have free guerilla1 anymore after rifling...

Cheers

edit: Rolo beats me to it! ... nicely he was more precise (forgot the ability to build missionaries)

 

[kooboo]

I figure if I can still take advantage of the Duns in the gunpowder age, with the stone I may actually build a number of them. In fact, if I can take advantage of them in the gunpowder age I may consider a game as Churchill of the Celts (once I get some more experience on prince) to try to really abuse the promoted gunpowder units as well as the wall overflow trick which I have never tried.

The only units that are eligible for Guerilla promotions are Recon units, Archery and Gunpowder. So the only units You can train with the extra promotion are:
1) Scout, Explorer
2) Archer, Longbowman, Crossbowman
3) Musketman and Grenadier.
If you want to have some modern Guerilla 3 units, you will have to save them from the earlier years and promote.

 

[TheMeInTeam]

The only units that are eligible for Guerilla promotions are Recon units, Archery and Gunpowder. So the only units You can train with the extra promotion are:
1) Scout, Explorer
2) Archer, Longbowman, Crossbowman
3) Musketman and Grenadier.
If you want to have some modern Guerilla 3 units, you will have to save them from the earlier years and promote.

Or just give rifles, infantry, or mech infantry the guerrilla promotion line instead, all of which are gunpowder.

Edit: Ah, with the Dun. True. However, upgrading for guerrilla III alone is seldom worth it so I didn't consider it.