Editor’s Note: Signal up for Unlocking the Environment, CNN Travel’s weekly publication. Get information about places opening, inspiration for upcoming adventures, moreover the latest in aviation, food stuff and consume, where by to remain and other vacation developments. CNN  —  Fancy shelling out two months touring overland from Istanbul to London without having ever having to get at the rear of the wheel? Indian expedition company Adventures Overland is about to launch what is becoming billed as “the world’s longest bus journey.” Owing to depart in August, the 56-working day excursion, which is obtainable for up to 30 passengers, will span 22 international locations, having travelers from Turkey’s greatest town,…