Please use the search function. I would also highly suggest keep learning as much as possible but slow down on the rush to get everything down. The fact is, is that it will likely take you many months to learn and then even implement what you want to do.
As for some bridge inspiration here is a link http://www.sc2mapster.com/forums/development/terrain/42471-weekly-terraining-exercise-95-unorthodox-bridges/
As i've already said in your other post, custom bridges require you to be creative yourself and can take something like 100-300 models organized together just make unless your a full blown modeller. Bridges especially are trickly as you will require knowledge from allot of the major areas like data and you ill have to know how to "trick" the editor into do what you want as there is usually no exact premade models of that make what you have in your mind.The most advanced bridges usually require you to manipulate and hide terrain while covering the errors up.
When I want your opinion...I'll give it to you!
SuperiorHHH Regular ShmoeYou might be thinking this should be in another section, but atm I'm currently concerned about the "look" of the bridge rather than the functions.
I'm making a more mid-evil type map with wizards, demons etc... and i want an older looking bridge, but it needs to be big and epic! I need three bridges to go across a cliff canyon horizontally. But here's the tricky part; i need there to be walkable paths under the bridges as well. (but that's function)
Basically i want less tech or modern looking bridges. And more of a rustic temple in the amazon type look for a bridge. anyone have any ideas to dress a bridge up? and how do i elongate my bridges? making them the size that i want and need?
I've looked in doodads and read online and from what i can see, there are no bridges...
Any help is greatly appreciated. Thank you!