The Sint Nicolaaskerk is a Roman Catholic church in the centre of Amsterdam. The architect, Adrianus Bleijs (1842-1912) designed the church basing himself on a combination of several revival styles of which Neo-Baroque and neo-Renaissance are the most prominent models.
The basis of the ground plan is the scheme of the classic three-aisled cross-basilica, i.e. a nave, two aisles and a single transept. The choir is located as is usual, at the end of the nave. In the corners formed by the transept and the nave, two chapels are located, traditionally devoted to Mary and Joseph. Inside the newly renovated church, a 19th century Sauer Organ can be found, on which concerts are given and mass is accompanied. (source)
Thank you Elly!