Fey crossroads were magical portals, many of which led to the Feywild. They could be found all over Toril but many were hidden from casual view. They often required the use of a ritual to operate and after the Spellplague many malfunctioned.
Entrances to the portals often resembled a door and might be a stone arch or two Stonehenge like monoliths. Most were large enough for a huge creature to fit through.