UB will be in 1.98, so I implemented them for now, but in a "basic" way. All names can be changed, as are all "effects", since 1.98 is not completed.
So here's the list:
1-Persia, Apothecary: +2 health, 15% commerce, opens 2 merchant slots, +1 health with Wine/Fruits/Olives/Opium
2-Media, Training Camp: +5 exp. to land units
3-Kolchis, Harbor: +3 exp. to naval units, +2 trade routes, +1 health with Clam/Crab/Fish
4-Lydia, Market: +1 happiness, +3 gold, +1 happiness with Ivory/Gold/Silver/Fur/Opium/Amber
5- Hittite, Lion Gates: +2 culture, +50% defense
6- Babylon, Edubba: +25% research
7- Egypt, Obelisk: +3 culture, +1 happiness
8- Nubia, Royal Tomb: +4 culture, +1 happiness
9- Rome, Forum: +25% more great people emergence, +30% commerce, +1 happiness with Ivory/Gold/Silver/Fur/Opium/Amber
10- Gaul, Dun: +50% defense, free Guerilla1 promotion
11- Germanic Tribes, Thengaz: -25% maintenance, reduced cost (60), +1 happiness
12- Carthage, Cothon: +1 trade route, +60% commerce per trade routes
13- Mycenaean, Odeon: +2 happiness, +1 happiness with Dye, +4 culture
14- Illyria, Kala: +1 culture, +50% defense, +2 exp. to land units
15- Dacia, Immortal Shrine: +2 culture, +1 happiness
16- Phoenicia, Trading Post: +1 trade routes +1 health with Fish/Crab/Clam, +10% commerce with Ivory/Gold/Silver/Fur/Wine/Gems/Amber
17- Britons, Henge: +2 culture, +2 happiness
18- Iberia, Stables: +3 exp for Cavalry units
19- Tartessia, Docks: +2 exp for naval units, +1 trade route, +10% commerce per metal
20- Scythia, Stables: +3 exp for Cavalry units
btw, stables are in now, as a normal building, like in Warlords