The Chantry houses a castle... well, a kind of castle. The occupant isn't popular with the locals, which take pots shots at it from time to time. The enemies hang out in the sky here, too. (Careful around those floating eyes - their eyelids have teeth!)
The Cascades were really unique, even for the Shadow Shard. It uses all three dimensions far more than any other zone in the game - or in most games, for that matter. A pity about poor Windy getting stuck in that tree for a second. (Sorry for the sound being a second behind - the video is old!)
Starting out near the portal back to Paragon City. Looks like all the additional teleports had been added when I did this recording. (These were recorded about ten years back so the framerate isn't great and the sound is about a second behind the video.
The Chantry was the third zone in the Shadow Shard. This also shows the Rularuu's most iconic soldiers (to use a term) - the Watchers. They shot beams out that did terrible things to reflex-based defenses and they bit for heavy damage.
Firebase Zulu, the first zone in the Shadow Shard. For those that couldn't fly or teleport, travel was done via little geysers that launched you from island to island. The geysers were quick but few people were willing to master them and just found somebody with Group Fly to carry them instead.
The final Shadow Shard zone contained the Storm Palace and Lanaruu. Before the teleporters were put in, this was far and away the most remote place you could get in the game and there were plenty of max level enemies floating around as well.
The Cascades was the second Shadow Shard zone. As you can see, it was WAY more vertical than any other zone in the game. The exit to the next zone was actually way at the top and you had to find your way up there.