The Sacré Coeur is a Roman Catholic church and minor basilica dedicated to the sacred heart of Jesus in Paris. 

The Basilica, originally designed by Paul Abadie and Romano-Byzantine in style, was inspired by churches like Saint Sofia in Constantinople or San Marco in Venice. 

Although built fairly recently (building began in 1876), the Sacré-Coeur Basilica looks from a distance like the illustration from an ancient fairy-tale. The church is frequently a subject for Parisian painters and plays a starring role in street art.

Construction finished in 1923 which coincided with the return to order,  after the Commune of Paris  in which Montmartre played an important role.

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Before going into the church, turn around to get what must be the best  view over Paris. Once inside, look for the incredible biblical mosaics throughout the church at the back of the altar and on the domed ceiling.