In 1796, shortly after the French-installed government proclaimed freedom of religion, De Duif was the first Catholic church to be built with a public entrance for more than two centuries. Unstable construction meant it had to be demolished; its replacement you see today was built in 1857. These days De Duif is no longer Catholic but Ecumenical, and is also a venue for concerts, opera and private events.
If you're able to peek inside, check out the clay friezes of the Stations of the Cross on the right-hand wall. The pulpit carvings are of St Willebrordus of Utrecht, and the organ is a sight in its own right, reaching up to the vaulted ceiling.