Montmartre was the tallest hill in Paris located in the north of the city.
Around 1895, not one but two spacecraft arrived within the hill belonging to the vampire and Varlos respectively. (PROSE: The Vampire of Paris)
Forming an alliance with the Dalek Time Controller, the Reborn Master aided him in creating a new Dalek army in return for control over a number of conquered worlds. Setting the Controller up in Montmartre within the Red Pagoda, he returned to the future and aided the Daleks in their occupation of Earth. (AUDIO: Master of the Daleks)
In June, 1894, while in the Moulin Rouge, Iris Wildthyme and her friends witnessed a Martian fleet invade Earth. (PROSE: Enter Wildthyme)