isgandar:

The Cosmati Pavement, medieval tile mosaic floor in front of the Westminster Abbey’s High Altar (1268 AD)

The floor has both artistic and historic significance. Named after a Roman family of skilled architects, craftsmen, and mosaic workers, Cosmati work was fashionable in the 12th and 13th centuries. This unusual mosaic technique was used to decorate tombs, pavements, and furniture in churches throughout Italy, and the style was employed at Westminster Abbey for the flooring upon which the royal coronation takes place. Thirty-eight kings and queens have been crowned standing upon the Cosmati Pavement. The floor in the Abbey is one of the last few existing in situ mosaic examples left in England. According to Westminster Abbey, the complexity and subtlety of the design and workmanship can be seen nowhere else on such a large scale.