Shows the easy (mage) way to get into Zul'Aman, as well as a more difficult way (all classes) for those without that hax ability Blink.
Songs: 'The Chase of Highway' by Nobuo Uematsu
'Vamo' Alla Flamenco' by Nobuo Uematsu
This is the original model of the Karazhan tower, back when it was named 'Kharazan' in the game files. Done on a live server 1.10
Song: 'Spending Time' by Ozma
For some reason a beta version of the Outlands is stuck inside the Deadmines, but outside of the normal instance. Using an exploit that has since been patched, you could blink through the instance portal and visit this bizarre area.
Song: 'Crystal Baller' by Third Eye Blind
This is the original plans for Old Hillsbrad Foothills, an instance in the Burning Crusade. This is the early beta version that was never meant to be explored. Done on a live server 1.10
Song: 'Entropy' by MC Hawking
This video shows a way to get to Prince Malchezaar in an instance that has only cleared past the Opera House. Does not require stealth, slow fall, or anything too fancy besides a small amount of wall jumping/walking. Done on live servers in 2.0.12.
Song: 'White and Nerdy' by Weird Al Yankovic
This video shows a way to get underneath the water in Booty Bay. From there you can explore pretty much anywhere but this video shows getting into the cannon turret tower near the Horde flight point.
Song: 'Mad World' by Gary Jules
In patch 2.0.3 there is a new glitch where for some reason Horde (and only Horde) can cap flags from 30yds away.
Song: 'Flight of the Wounded Bumblebee' by Nuno Bettencourt
Note: This was done at level 60 when Shadowstep first came out, before the Burning Crusade expansion. While the ability has scaled down at level 70, for the few weeks when everyone was still 60, it was quite fun.
This video shows my lame-at-PvP rogue hitting incredible Ambush crits with the new Shadowstep ability.
Song: 'Nobody Does It Better' by Me First and the Gimme Gimmes
Ever notice that huge Star Wars-esque pit below the Royal Chambers in Silvermoon City? Well it's guarded by an invisible wall so you can't jump in... but the wall isn't that tall.
Song: 'Countdown' from Goldeneye 007
There's a balcony tier above the market in the Undercity that you can't get to. Well, you can get there, just not in a normal way.
Song: 'Light and Day' by Polyphonic Spree
This method allows you to get behind the AQ instance portal, even before the gates to AQ are opened on your server. You can also see the old remains of what AQ used to look like.
Song: 'Today' by Smashing Pumpkins
This is done on a live server in patch 2.0.1, a neat trick to get under the ground in Arathi Basin.
Song: 'I Want Your Girlfriend To Be My Girlfriend' by Reel Big Fish
How to get out of Warsong Gulch from the Horde base. Requires a mage for this method, although I'm sure there are other places that any class can use.
Song: 'Blowin in the Wind' by Me First and the Gimme Gimmes