I noticed that alot of people asked about places for their custom things. Because of this i started to make a list of Cool places where you can make malls/events/instances. In this post Ill post 5 places .
Hey there again :P For those who visited my last thread (Part 1
) here is the next...
As in the last part I will give you some places where you can make malls, create events or spawn an instance. REMEMBER: In this thread I will only SHOW you those places. I did not create anything there (atleast nothing i will release here :P). But ok here we go:
Today you will get other places from me.
1. Wetlands Farm
2. Western Tirisfal
3. Outside Naxxramas
4. Jintha'Alor
5. Night Elf's Landing
Here are the colors and their meanings:
Pink - Notes - I hope you know what they do.
Orange - History - A history you COULD use (i did those in one minute). These are not the original histories of those places!
Green - Pro - Good things
Red - Contra - Not so good things
7.Wetlands farm
.worldport 0 -4024.388672 -1407.047974 155.663696
Notes:
This is a dwarven farm in the mountains of the wetlands.
You could make an event or a mall here. There are some dwarven farmers and buildings.
There is a little lake and a waterfall. Oh and there is the famous tunnel to death (its a tunnel that ends in the nothing
)
Pro:
-Buildings
-Lake
-Waterfall
-Nice view 
Contra:
-Tunnel to Death would have to be blocked
-Most Buidlings are closed
-NPCs already exist
8. Western Tirisfal
.worldport 0 1954.999878 2399.141357 131.252274
Notes:
This is another area that Blizz did not finish.
There are some wierd parts of land here.
You can make a jail here or an obstacle course / other event.
Western Tirisfal is right west of the starting point of the undead 
Pro:
-Very large area.
-Not flat :/
Contra:
-No doodads
-Some wierd parts of land
-wierd textures sometimes
-easy to kill new undeads for Alliance
9. Outside Naxxramas
.worldport 533 3580.185791 -4505.611328 197.894821 / .recall port Frostwyrmlair (and then fly out of Kel'Thuzad´s room)
Notes:
Some of you may say that this is Northrend-like but its just a snowy area :P
This area has two parts: The first part is outside the normal Naxxramas
and that is like the Eastern Plaguelands (with some changes)
The 2nd part: Outside the Frostwyrm Lair (Sapphiron and Kel'Thuzad)
there is a snowy area that has some cool doodads etc.
Pro:
-Two different areas = Two different instances/malls/events in one instance
-Just a very cool area 
-Funny doodads
-Little forests
Contra:
-few holes in the ground
-bugged area: invisible walls, big walls etc...
10. Jintha'Alor
.worldport 0 -205.978485 -4137.642090 117.683640
Notes:
This is another awesome area for an instance.
Jintha'Alor is a troll village in the Hinterlands.
It is fully spawned but as far as i know it is never used on
Private Servers, so why not make it a high level instance.
It is a very large area with everything you need: caves, altars,
lairs, lakes etc
This is really just awesome!
Instance History:
The old troll village Jintha'Alor got run over by cookies...
no cookies? OH we eat the cookies?
Ok... then here is the history:
Jintha'Alor, an old troll village, got run over by an evil sorcerer and his
skeletons. You have to go there, fight all your way up to the lair where he has
built his new laboratory and try to destroy the ring of his. This ring gives him the power
to control dead bodys (thats why has so many skeletons/Undeads).
Pro:
-LAAAAARGE area
-really everything you need.
-buildings
-lakes
-caves
-a lair
-waterfalls
-altars
-hard to get to the top = hard instance
Contra:
-Alot of existing npcs there
11.Night Elf's Landing
.worldport 0 4263.138672 -2779.382324 6.165768
Notes:
I don´t think this place i called Night Elf's Landing
but there are NE doodads and thats why i call it Night Elf's Landing!
Its a little area in the very north of the Eastern Kingdoms. This can be
a cool place for a mall.
Pro:
-Cool place
-Buildings
-Doodads
-In the middle of nowhere
Contra:
-Small area
-like i said in the middle of nowhere (dunno if this is good or not)
Part 2 is done, Part 3 will follow
I will upload some pictures and add them later.
If you have questions or problems write a reply or pm me!
Happy Visiting 