Église du Sacré-Cœur et Notre-Dame-de-Lourdes, Byzantine Revival church in Cointe, Belgium

The Église du Sacré-Cœur et Notre-Dame-de-Lourdes in Cointe is a Byzantine Revival church of light grey stone, roofed by a vast ribbed dome of oxidized green copper weighing 13 tonnes, its copper from the Belgian Congo's Katanga. A ring of arched openings on columns runs beneath the dome, with smaller green copper domes at the corners. Tall narrow round-arched windows with vertical tracery pierce the lower walls; the masonry shows white patches and dark streaks, and red brick is exposed low down.

Architect Joseph Smolderen designed this building in the post-World War I period as a memorial project, completed and consecrated in 1936. Its construction during this era reflects the importance placed on honoring and remembering the war years.

The church is often called a basilica, though it never received that title; the confusion stems from its size and unusual Neo-Byzantine style. Inside are statues of two saints, Maur and Mort, the latter known locally as Saint Honoré of Cointe. Since 2021 the building has belonged to the Fondation de la Basilique de la Paix.

The church stands on the heights of Cointe, within the Interallied Memorial, and is reached on foot from the memorial esplanade. As of 2024 the building is locked and in a neglected state, so it can only be seen from outside. A conversion into a climbing wall, panoramic restaurant, cinema and multi-purpose hall was announced for 2023, but no building permit had been granted.

The dome's 13 tonnes of copper sheeting came from Katanga, then a Belgian colony and now part of the Congo. The church also holds statues of Saint Maur and Saint Mort, the latter venerated at Cointe as Saint Honoré. It is often called a basilica, a title it never officially received.