The Basilica of the Holy Blood is a Roman Catholic basilica in Bruges. The church houses a venerated relic of the Holy Blood allegedly collected by Joseph of Arimathea and brought from the Holy Land by Thierry of Alsace, Count of Flanders.
The double church, dedicated to Our Lady and Saint Basil in the 12th century and a basilica since 1923, consists of a lower church that has maintained its Romanesque character and a neo-Gothic upper church, in which the relic of the Holy Blood is preserved. The treasury, with numerous valuable works of art, is also worth a visit.
https://www.visitbruges.be/en/basiliek-van-het-heilig-bloed-basilica-of-the-holy-blood