On Friday, we went for a hike that leads up a trail to the top of a cliff high above the town of Kas, Turkey. It wasn't a long trail, but from the bottom you can see some flags that somebody put up there, and it sure did look a long way up.
My mapping program told me that it was a 1.7 km (1.1 mile) trail, but that it would take an hour and twenty minutes because it's pretty much straight up. It gains 350 meters (1,200') in that short distance.