Where is the greatest and longest wall of the earth? April 7, 2021 / By Preparation Point / Tehsildar PPSC Past Papers Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedIn(A) China ✓ (B) Japan (C) Korea (D) Italy The Great Wall of China is the longest in the world and has a main-line length of 3,460 km Share this:TwitterFacebookMoreTelegramWhatsAppLike this:Like Loading... Related Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedIn