was there any building built in his memory?
Yes - Ashmolean Museum
Elias Ashmole
Ashmole donated most of his collection, his antiquarian library and priceless manuscripts to the University of Oxford to create the Ashmolean Museum.
who is elias ashmole? An English antiquary, politician, officer of arms, astrologer and student of alchemy.
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Elias Ashmole [SEP] Introduction
He was an early freemason, although the extent of his involvement and commitment is unclear. Throughout his life he was an avid collector of curiosities and other artefacts. Many of these he acquired from the traveller, botanist, and collector John Tradescant the Younger. Ashmole donated most of his collection, his antiquarian library and priceless manuscripts to the University of Oxford to create the Ashmolean Museum.