How can I create voxel based terrain ?

I am looking for a method to create destructible terrain, and destructible buildings, and I think that voxel based terrain can solve this for me (I saw a game that had voxel based terrain, or at least that’s what the one who presented the game said, and everything was destructible). Can you reference me to a good tutorial ?

voxel terrain may look simple but is very difficult to create, if you have enough programming experience then first check out these series till about part 20 or so to get the hang of voxels -
Minecraft Mech: #1 Let's Program - YouTube,
then check out these series for optimization -
Student Game Dev has moved!: Unity Voxel Tutorial Part 1: Generating meshes from code
Hope it helps

I wasn’t looking for that kind of voxel terrain because I do not intend to make a MineCraft copy at the moment. I was looking for this kind of voxel based terrain:
(1:40) Voxel terrain engine - work in progress - YouTube

I was looking for tips on what Everquest Next Landmark did with their super-cool 100% destructible terrain. And they said that it’s voxel based terrain.
(3:38) 14 Kickass F2P Games to Play This Summer - YouTube

Some hints for me ?