Just round the corner from the Anne Frank Huis, the Protestant Westerkerk is yet another ecclesiastical masterpiece by the Dutch celebrity architect of the 17th century, Hendrick de Keyser (who also designed the Noorderkerk and the Zuiderkerk), as part of the new development of the Grachtengordel (Canal Ring). The foundation stone was laid in 1620 (de Keyser died a year later), and the tower was finally completed in 1638; it is more than 85m tall (270 ft.) and is topped with the gilded Crown of Maximilian. Every 15 minutes the carillon bells ring out across the city but the church itself is austere inside; in chime with the Calvinist beliefs of the time there is no altar, but the gold and silver pipes and Baroque sculpture adorning the organ make up for the lack of ornamentation. It is the burial place of Rembrandt—although no one knows where his grave is on the unmarked stone floor—as well as his wife Saskia and son Titus. It is also the venue for several royal weddings.