This route lets you see everything that Boulder has to offer for mountain running by traversing the five mountains of Boulder's skyline: South Boulder Peak, Bear Peak, Green Mountain, Flagstaff Mountain, and Mt. Sanitas.  It's classic and competitive, so for FKT purposes, this is the exact route:

With a length of 172 km and eleven marked daily stages, the Palatinate Wine Trail is the longest marked hiking trail in the Palatinate (Rhineland-Palatinate). The long-distance hiking trail was opened in December 2010 and received its award as a quality hiking trail in September 2011.