The title is "not even" clickbait, just very confusing.

"The unique complex contains more than 1,300 square feet of underground space, including tunnels and storage rooms - and even a hand-built railway."

(Edit: I mean the original article, not the submission)

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librasteve an hour ago | parent [-]

well I (the submitter) messed up and wrote 15M in the submission title (note the cap) in error just to add to the confusion (now fixed, soz.) … I thought “best” just to repeat the article title

	▲	rzzzt an hour ago \| parent [-]
		No worries, I take issue with the person who concocted the original title. I got here after the capital-M change and it was still confusing that they didn't mention the space that was dug out at this depth, instead paint a picture of a system of tunnels under a normal house(?)