[Cicero]

9. 136 of the world's most historic places could be in jeopardy.

Let's not exaggerate! My research suggests that no more than 135 of the world's most historic places will be in jeopardy.

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[PATRIOT1876]

* 9. 136 of the world’s most historic places could be in jeopardy.
Let’s not exaggerate! My research suggests that no more than 135 of the world’s most historic places will be in jeopardy. *

It depends on what you count as historic.

It could be as many as 159.55 historic places. The Science is settled.