Kilimanjaro, Tanzania
Mount Rainier, Washington
Mount Elbrus, Russia
Cotopaxi, Ecuador
Mount Fuji, Japan
Mount Shasta, California
6 Iconic Hikes You Should Do Before You Die
I believe Kili is the only one of those 6 that you MUST do with a guide.
Check our list of best trekking peaks. Kili and Ranier are on it.
besthike.com 