There are numerous buildings that dot the landscape of Urak, the buildings of the 8 cities, gold and crystal mines, breweries, and caves just to name a few.
In your city
Inside of your city will be a stronghold, a barracks, a thieves guild, a mage tower, and a library. Just outside your city will be your great temple.
In the stronghold, you assign villagers to gather resources for your campaign.
In the barracks, you train units that are good in hand to hand combat.
In the thieves guild, you train missile units, and scouts.
In the mage tower, you train magical units and creatures of legend.
In the library, you will research new spells for your mages use.
In your great temple, you will be able to train a legendary unit. These include Stone Giants, Fire Dragons, Thunder Drakes, and Vampires. These are the most powerful units in the game. All temples look different to somehow resemble their faith.
Outside the city
Outside the city are mines, caves, towers, villages, and other buildings.
Gold mines, crystal mines, breweries, and statues provide you with more resources per day.
Caves, mushroom patches, hamlets, mysterious keeps, and towers give you places to improve your experience by fighting renegade units. After time renegade units will leave these and raze your undefended buildings.
Villages are on the border of two faiths. These give you the option of building either of the faiths units. You can make death units to join your army if you come across a town bordering Death. The only restriction is that you can only make 1 building at a village.