A few things I would like to add:
- in your guild halls you can buy merchants/NPCs that will be there so you don't have to visit a town or an outpost to buy skills, runes, materials or anything else.
- in your guild hall you can do scrimmage from 1vs1 to 8vs8 (max) against each other for training purposes as also unrated guild VS guild with your alliance guilds also for training purposes.
- alliance channel and alliances for up to 9 guilds per alliance!
- 3 campaigns, 1 expansion and 1 bonus mission pack(in which you can jump into the past of 4 different characters and go through their story as them, Gwen as example)
- dungeons, the old temple of the kings, Heroes Ascent tournaments, the underworld and Riss, Hero Battles, random arena, team arena, dwarf knuckles tournaments, Magi Bison Norn Tournament, Asura Polymock battles (on plattforms) and A LOT more!
- Nightfall and Eye of the North have fully customizeable heroes for you to unlock and take with you in your trips. Some you get through quests, others through tournaments after you face them as opponents and win against them(also one from prophecies and one from factions).
- timed missions, cooperative missions, Rank Listing missions, transformations and lost of other unique stuff.
- 10 different professions that can be mixed? Tons of Pets to charm (your heroes can have their own pets too ^^).
- Your own hall of monuments on which you can show your visitors your heroes, titles, mini pets (birthday presents or special ones), weapons and armor sets.
- unlockable stuff from eye of the north for Guild Wars two!
- last but not least: ONE WORLD with many districts that connects the whole world instead of splitting us.
Have fun!