EuroVelo 11 is called 11 the East Europe Route and connect (theoretically) the North Cape with Athens. On the state of the route there is an OpenStreetMap wiki page [4]

for the Baltic States

• only marked on Estonia’s National Route No. 3.

If you want to discover it in Latvia and Lithuania,

you can read the BaltiCCycle.eu route descriptions

• “Riga-Vilnius by bicycle” (LT3/LV3) and

• Warsaw-Vilnius (LT1)

 (sorry, there is no special infrastructure in Lithuania and Latvia there, yet)

http://en.wikipedia.org/wiki/EuroVelo#EuroVelo_11  

No. 11  Athens – North Cape