The Breakneck Stairs, or Breakneck Steps (French: Escalier casse-cou), is Quebec City's oldest stairway, built in 1635. Originally called escalier Champlain ("Champlain Stairs"), escalier du Quêteux ("Beggars' Stairs"), or escalier de la Basse-Ville ("Lower Town Stairs"), they were given their current name in the mid-19th century, because of their steepness. The stairs, which connect Côte de la Montagne in the "Upper Town" to the corner of Rue du Petit-Champlain and Rue Sous-le-Fort in the "Lower Town"), have been restored several times, including an 1889 renovation by Charles Baillargé, which converted the steps from a single flight into three parallel ones.

Several businesses are located on the western side of the steps at each of its four flights.

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  1870
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  1892
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  1900
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  2010