Regency Square is one of Brighton's set-piece urban spaces, a seafront-facing square of early 19th-century terraces. The view is now shared with the British Airways i360, but the old architecture still frames the slope down to the beach with considerable style.
It is worth noticing because Brighton's appeal is not only its pier and lanes, but the way resort architecture turns ordinary streets into theatre. Walk through slowly, look up at the terraces, then drop down to the promenade for the contrast between Regency order and seaside noise.