Minecraft: Chamber of the Creators - 01 - Of Swedish Signs and Jumping In Church
This map was done by two new map makers (Jaever & Gelvin) and even from the little bit I've played it's pretty awesome.
Check out the thread for Chamber of the Creators on MinecraftForum.net: http://bit.ly/HIw7Iy
Texture Pack is Jolicraft (without MC patcher since I like the default water/lava). Get it at http://Jolicraft.com