The first of five clues. Each one below gives a little more away.
I am not one thing. I am many things, built by people who never met one another.
Most of what you picture is only about six hundred years old, and the emperor who gets the credit was dead for sixteen centuries by then.
You cannot see me from the Moon, and that story was in print before anybody had been up to check.
Parts of me are held together with mortar mixed from sticky rice.
Thousands of kilometres of stone across northern China.
Great Wall Of China
The claim that it is visible from space appeared in books in the 1930s, decades before any human went up to look. When they finally did, they could not see it.
There is no single wall. There are walls, built and abandoned and rebuilt by rival states and successive dynasties over roughly two thousand years, along routes that do not always connect. The stone and brick version tourists photograph is Ming, mostly sixteenth century, and was as much a military road and signalling system as a barrier — smoke by day, fire by night, carrying a warning faster than a horse. Some Ming mortar was mixed with sticky rice, and the starch makes it tougher and more waterproof than lime alone, which is part of why those sections are the ones still standing.
Reading five clues at once is not the game. In the real thing they arrive one at a time and every wrong guess costs an hour. Play mystery #31 · today's mystery · the vault
Previous: mystery #30. Next: mystery #32. Or try #2, #3, #4, #5, #6, #7.