This lovely flamboyant style building was originally a chapel of the crossbowmen. Legend has it that in 1348, the pious Béatrice Soetkens brought a statue of the Holy Virgin from Antwerp to Brussels as a gift for the crossbowmen. The chapel became a place of pilgrimage and was enlargened from the 15C to 16C, at the end of the flamboyant Gothic period, but also its pinnacle. The exterior was entirely renovated more than a century ago by followers of Viollet-le-Duc, who added some belltowers, towers, pinnacles, balustrades and statues. The main shape of the building luckily remains intact. Inside, you will see the long choir and the high glass canopies with thin columns between. The pulpit dates back to 1697. Above the entrance, you will see the statue of Our Lady of the Tree).