Experts and BHG readers answer.
Ugly privacy wood fence
Thanks for writing. It depends on where you live --- you didn't mention your climate, so it's impossible for me to give you recommendations.
But, you can use our online Plant Encyclopedia (URL below) to do a search for tall perennials and vines that will thrive in your area.
Check it out: http://www.bhg.com/gardening/plant-dictionary/
---Justin, Senior Garden Editor, BHG.com