Dwarven architecture huh? Well, I can't say that what I've built so far is up to snuff, but I'll try.
That large area on the left is the old fortress. The 160 or so dwarves lived there for about 6-7 years before the move to the new fortress began. The large circle on the right with the opening is the entrance to the new fortress shaft, which I affectionally call the Zion shaft, inspired by the Matrix movies.
In the old fortress, every dwarf had 2x2 bedrooms, fully engraved walls and floors, and one iron cabinet to their name.
Littered outside are all the dead goblins who dared attack us over the years, along with their blood.
The old fortress is hugely unappealing, which is why I'm not showing it.
The first floor of the Zion shaft is the finished goods stockpile, with a steel Trade Depot placed at the rear of the cavern. Its impossible to see, but the floor is fully smoothed. 2 steel bridges with 5 steel statues welcome all traders and/or migrants to the fortress. The military barracks are right behind the steel bridges, ready to respond to invaders.
The second floor of the shaft is the workshop area. In this place, all the workshops will be housed. Construction is still ongoing. All workshops are made from steel, as far as possible.
The third floor is the stockpile area. The name is pretty self-explanatory.
It might have come to your notice that there is a double helix staircase in the center of the shaft. Its only for show, as there have been staircases built in the center of the shaft.
The fourth and fifth floors are currently unused. Plans are being drawn up.
The pride and joy of my fortress is the bedroom/dining room/ statue garden floor. Every single dwarf gets a 3x3 fully engraved bedroom and 1 iron cabinet each. I'm currently sending out work orders for enough iron cabinets to give each dwarf another iron cabinet each. The large centra area is the dining room. Early in my fort's history, a strange mood produced a dog bone artifact table, which instantly made my shitty old 8x12 dining room legendary.
The larger rooms at the corner are for the baron and other important dwarves.
The only entrances to the bedrooms go through statue gardens. I'm not sure if this forces happy thoughts upon my dwarves due to the forced pass-through, but it sure helps for dwarf happiness.
Sadly, the move from the old bedrooms to the new bedrooms is not yet complete, which is why the place is not yet fully occupied.
The final floor is the food industry floor. Three rooms have been dug out, to serve as food storage areas. A fourth room has been dug out, and is currently being cleared of stone before being designated as another food stockpile. The Smoothed room at the lower half is the industry room. Again, all workshops have been constructed out of steel, except for the quern, which is, sadly, made from chalk. The 6 o'clock room is the farm, which grows all the different varieties of underground crops possible. Digging the irrigation channels that run below the fortress was a huge pain. The smoothed room at the upper half will, eventually, serve as the egg-layer pasture, once I can move all the nest boxes into that room.
And that's my fortress as it currently stands, Polishseals, or Delethurvad.