In Kerning City, take6↓Middle · lower level(you arrive on the right side, lower level)or7↓Middle · lower level(you arrive on the right side, upper level)
Grey numbers are portals on another map: each opens that map with the portal picked out. A coloured number followed by "here" is a portal on the map above. Positions are from the game files, not tested in Classic World.
In West Street Corner of Perion, take1↙Left side · lower level
In Kerning City, take6↓Middle · lower level(you arrive on the right side, lower level)or7↓Middle · lower level(you arrive on the right side, upper level)
In Kerning City, take6↓Middle · lower level(you arrive on the right side, lower level)or7↓Middle · lower level(you arrive on the right side, upper level)