The Dominican Church was built in 1749-1764 according to the design of Jan de Witte on the site of the old Gothic one. Its construction was supervised by architects Maciej Urbanik, Krzysztof Muradowicz, and completed by Clemens Fesinger. After the restoration in 1972, the monastery premises were equipped with the Museum of the History of Religion and Atheism. In 1998, the church was given to the believers of the Greek Catholic community of the Most Holy Eucharist. On the right side, you can see the facade of the Royal Arsenal, built in 1639 according to the design of Pavel Grodzicki at the expense of King Władysław IV. Now it houses the Lviv Regional State Archive.