Joining a guild in World of Warcraft has many benefits, aside from the
social aspect.
One of the benefits is the Wrap of Unity, which is a cloak containing a TELEPORT to either Stormwind or Ogrimmar. It has a long cooldown but is very handy for getting out of a tight spot!
It's available from
guild vendors in major cities for 300 gold, once you reach Guild Level 15.
Check out the other things he has for sale, there's mounts, pets and toys too!
This is a link to a list of all the guild vendors in WOW:
https://wowpedia.fandom.com/wiki/Guild_vendor
Alliance
Shay Pressler -Stormwind City
Alliance
Nuri - The Exodar
Alliance
Steeg Haskell - Ironforge
Alliance
Velia Moonbow - Darnassus
Alliance
Perry Charlton - Boralus Harbor
Horde Goram
- Orgrimmar
Horde Kim
Horn - Undercity
Horde
Larissia - Silvermoon City
Horde Randah
Songhorn - Thunder Bluff
Neutral Riha - Shattrath
Neutral
Mirla Silverblaze - Dalaran
ALLIANCE:
For Alliance, the Stormwind vendor is very easy to find.

Head to the main city gates and you’ll find the shop on the
right hand side, just before you exit the city.

HORDE:
The Guild Vendor in Orgrimmar is located in the Valley of Strength, right next to the tabard vendor.