Which path would be the best way to get to Istanbul in your opinion. Not just directly seeing sights along the way.
Start in London-France-Germany-Czech Republic-Austria-Hungary-Romania-Bulgaria-Turkey-End in Istanbul
Or
Start In Lisbon-Spain-Italy-Slovenia-Croatia-Bosnia-Serbia-Bulgaria-Turkey-End In Istanbul
I plan on taking about 4 months. Starting In September. About $16,000 for the whole trip hopefully.
Thanks