On a trip to the UK, last Summer, Sandra  visited the recently restored Flax Mill in Shrewsbury.
Built 1797 , it is the first iron frame multi storey structure in the world and was the model for later skyscrapers . 

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What is Shrewsbury Flaxmill Maltings?

Situated just outside Shrewsbury town centre, the internationally important Flaxmill Maltings site reflects a time when Shropshire led the way in engineering. The site is home to eight special buildings each with a unique story to tell, including the 1797 Main Mill which is the grandparent of skyscrapers.-Shrewsbury Flaxmill Maltings.