Also known as Biblioteca, the Cathedral Library is at the southern end of Víziváros.
This is the oldest and richest public library in Hungary, founded in 1853 and boasting more than 170,000 volumes.
The building is also striking, with early Eclectic architecture and with a statue of St Jerome above its cornice.
Among the many valuable books and manuscripts on its shelves are the Jordánszky-Kódex, a Hungarian translation of the bible from 1516-19, the Filipecz Kódex from 1470 and the 11th-century Tractatus.