The Mall, a wide 18th-century street built on reclaimed land, was once a tidal inlet. From the river end, its stateliest buildings are John Roberts' City Hall (1788) and beautifully refurbished Theatre Royal , arguably Ireland's most intact 18th-century theatre.
Crumbling fragments of the old city wall include Beach Tower at the top of Jenkin's Lane and Half Moon Tower (both are just off Patrick St). One impossible-to-miss building in Waterford is its landmark 1860s clock tower .