The Basilica of Saint Nicholas stands just across from Amsterdam Centraal, with twin towers and a dome that make it one of the first major landmarks many visitors see. Built in the late 19th century, it marked the public return of Catholic architecture to a city where Catholic worship had long been pushed into hidden churches.
The interior is richer than the railway-station setting suggests, with stained glass, painted vaulting, side chapels, and a sense of ceremony that contrasts sharply with the traffic and crowds outside. It is an easy stop before walking into the old centre, and a useful companion to Our Lord in the Attic and De Papegaai if you want Amsterdam's Catholic story in more than one chapter.