I know a lot of people are skittish about sharing any info about their immediate vicinity, but I've found Thingwalls to be very useful for travel; particularly trade greatly benefits from having them. However, actually finding the things is a very time-consuming process. As such I'd like to share the Thingwalls I've found so far with you and ask you to add any that you know of and are comfortable with sharing with everyone else, so we can all extend our fast travel range.
Use this URL to access the map: https://vatsul.com/HnHMap/map?markers=3 ... .92&zoom=4 (be aware that any markers you add to this will be publicly visible!)
EDIT: The map was vandalized. For now, here's a read-only copy of the map: https://vatsul.com/HnHMap/map?markers=e ... .84&zoom=3 (any changes you make on this will not be submitted to the server and will be lost when you close/refresh the page)
EDIT2: Markers have been re-imported (thanks to Shubla for adding this feature) and you can add Thingwalls again. You can also make a personal copy by clicking this link to start a new map, clicking 'import & share markers' and entering the public Thingwall map URL.