The Halls of Vrbansk are said to be the source of the ancient wisdom of the Great Race. You can use the Halls of Vrbansk to upgrade any permanent structure. Unlike many other glyph buildings you may build any number of Halls on your planet surface that you have room to build.

Glyph recipes: The Halls of Vrbansk can be built at the Archaeology Ministry using any of the following recipes.

1. goethite, halite, gypsum, trona
2. gold, anthracite, uraninite, bauxite
3. kerogen, methane, sulfur, zircon
4. monazite, fluorite, beryl, magnetite
5. rutile, chromite, chalcopyrite, galena

Upgrading a glyph building: To upgrade a permanent structure you will sacrifice a number of halls equal to the level upgrade. So to upgrade a level 3 Citadel of Knope to a level 4, you will need to sacrifice 4 Halls of Vrbansk. There is no need to upgrade a Halls of Vrbansk. 

Click on any of them and a list of all the glyph buildings on your planet able to be upgraded is displayed. Select a building you want to upgrade and the appropriate number of Halls of Vrbansk are destroyed. The selected glyph building will be added to the build queue.

Buildings upgraded in this manner are also limited to level 30.