PeakFinder
▻http://www.peakfinder.org
The site allows you to find peaks (mountains and hills) in your surroundings or wherever you want. Basically, it draws a simple line sketch of the horizon as you see it from your current position and names all the peaks in your sight.
http://www.digital-geography.com/wp-content/uploads/2014/02/AC-300x114.jpg 
http://www.digital-geography.com/wp-content/uploads/2014/02/Matterhorn-300x120.jpg via ▻http://www.digital-geography.com/peakfinder-identify-hills-around
