make the walls up to two bloks then stand on them to do the rest unitl it's night time or your done. or u can make a ladder up to the walls and u made a castle.
yes
You just build up.
Use //set cobblestone.
A stronghold is underground, and has stone brick walls, as well as metal doors.
hypixel's server, i cant remember the exact address, but you can just google it
It is not possible in the current official release of Minecraft to make rails go strait up walls. The steepest a rail can go up is one block at a time. It would be possible with a mod to allow rails to travel up walls, but there is no way without a mod.
A mod that lets you fly, look through walls and highlights ores is Zombes ModPack which is very useful to me.
If you're talking about the Ring mod, the Ring of Araneae let's you climb up walls like a spider.
It's some hacking device that lets you run fast, fly better, and walk through walls on MineCraft.
It is a client that allows you to fly, have super jump, super run speed, and be able to walk through walls.
Yes, it is only a custom map. All custom maps are free, and you should never have to pay to play one.
First, find a download of the map. (preferably without a virus) Next, put it in either your saves, or in the folder for your minecraft server. Find enough people who want to play it. Run the server. (LAN or online) Finally, enjoy.