Try to change my mind.
The Kremlin acts as a fortified outposts, shoots an arrow with 12 damage every second and can garrison villagers. Ontop of this, it also increases the amount of wood dropped off at town centers and lumber camps around it by 20%.
Meanwhile, the Barbican of the Sun acts as an outpost, shoots a small cannonball with 25 damage but only every 3 seconds. Villagers can also be garrisoned in the Barbican. In terms of dps, this is much worse.
Even against early Knights, which have 3 armor, the Kremlin does 27 damage within 3 seconds. The Barbican is much worse.
Ontop of this, the Barbican offers no other bonus whatsoever. No economy bonus compared to the Kremlin.
The High armory lowers the cost of all siege units build in a large radius around it by 20%. Ontop of this, it contains unique upgrades, for example it allows Mangonels and Trebuchets to pack and unpack immediately. Due to the high cost of siege units, saving 20% is a big deal.
The Spirit Way Landmark lowers the cost of Dynasty units in a very small radius around it. In fact, the radius is not displayed when trying to build it, which makes it difficult to place it properly. It gives you access to previously unlocked Dynasty units, but as we established already, its not worth building Zhuge Nu in the first place since they are overpriced Archers.
The cost of Dynasty units is reduced by 30% however, to gain any benefit out of this Landmark you need to invest atleast 600 ressources into a 2nd Landmark in the first place.
There are also no unique techs for any of Chinese Dynasty units accessible in this Landmark.
The Chinese are unanimously agreed to be a low tier civ.
The Chinese are much more difficult to play yet other civs which are much easier to play have superiour stats on their units and landmarks. This is not balanced and this needs to change.