Question: What is the biggest chocolate model of a series of fortifications made of stone, brick, tamped earth, wood, and other materials, generally  built along an east-to-west line across the historical northern borders of china  housed at World Chocolate Wonderland?
Sentence (from "Great Wall of China"): Several walls were being built as early as the 7th century BC; these, later joined together and made bigger and stronger, are now collectively referred to as the Great Wall.
Relevant evidence: No