At the moment, the #WikiLoc app provides sensible results: actual trails walked by actual people, often with photos and a nice description and properties of the trail and site. Given that it's little more than recorded GPS traces from real people, there's a wide variety of places, including cities, villages, fields, and mountains. On foot, bicycle, and even other forms of transportation.
No affiliation, I just find the app actually useful in its present form. Here is to hoping it won't change.