Here’s a nice one from Movelo as a part of their Doorstep Epic program:

“Three times Oli tried to enter the legendary Three Peaks cyclocross race. After being denied the final time he decided to replicate the challenge in his home town. More than that though, if he was to forgo the drive north he was to forgo the drive full stop. It was to start and finish from his front door. The first part of the Doorstep Epic trilogy sees Oli attempt to cram 5000ft of climbing and 38 miles in a landscape that never rises above 830ft.

Doorstep Epic is a reaction to pre-determined challenges and pre-made far flung rides. With some imagination, creativity and a map, a challenging adventure can be found right outside your front door.”