Registration Criteria:
Criterion ii: Lyons bears exceptional testimony to the continuity of urban settlement over more than two millennia on a site of great commercial and strategic significance, where cultural traditions from many parts of Europe have come together to create a coherent and vigorous continuing community.
Criterion iv: By virtue of the special way in which it has developed spatially, Lyons illustrates in an exceptional way the progress and evolution of architectural design and town planning over many centuries.