Visit the Basilica of the Sacred Heart in Koekelberg, the fifth biggest church in the world! In this special Art Deco monument you can visit the Museum of Modern Religious Art and the Museum of the Black Sisters. At a height of 52,80m, right under the dome of the Basilica, an external gallery allows you to discover a breath-taking view of Brussels and Brabant. On a clear day one can see as far as Mechelen Cathedral and the 'Plan Incliné' of Ronquières.