WAR's Saphery zone is full of tall magical things
The racial pairing we still have the least information for has been the High and Dark Elves, but that is starting to change. Enter the Saphery zone -- a third tier zone for High Elves -- that is chocked full of magical energies and ancient High Elf beauty. This makes it a target for Dark Elves who want to twist and malign those energies, the Greenskins so they can smash all the pretty stuff and the Chaos so they can, well, bring chaos to everything in sight we suppose.
There's actually quite a bit (actually, more like tons) of background lore in the zone overview of Saphery. We've noticed for some time now that a lot of structure designs in Warhammer Online are very, very tall. However it looks like High Elf architecture trumps all other height-imbued buildings, but that makes sense since High Elves are all about being tall and uppity. Oh, we're digging the blue-leafed trees as well.
