How to build honor structure?

To build honor structures go to the world map and tap the build icon in the lower right. The build menu will only show 2 active items for the world map, resources and honor structures.

Select the Honor option, you will move on the map to the location of the alliance center 1 and see the types of structures along the bottom. If you are placing the structure at alliance center 1 (all number 1 buildings) then select the building from the bottom and move it to a suitable (green) location. It costs stones to place the building.

If you want to place a building number 2, 3 or 4 (at the other alliance centers, if they are placed) then you need to first tap the small alliance center icon on the lower left and select the appropriate alliance center to go to. The place the building as above.