I've found a leyline going from the italian alps starting from Como, through Brescia, Mantua, Bologna, Ferrara, Ravenna, Urbino, Ancona, to Fermo.
Another one in italy a sole leyline not leading anywhere in Foggia on the outcropping on the eastern side of the italian peninsula.
And a 2 barony long leyline just a bit more south on a similar outcropping in Bari and Lecce

Edit: Okay this one goes in a relative straight line right up to the focal point in ynys mön in the british isles through france and the southern part of england, and southwards it goes from lecce through greece, crete, egypt(where there is a focal point in giza, where the pyramids are), follows the Nile for a while, and eventually end in africa wih no more focal points.