It is located under Boulevard Saint-Michel on the border between the 5th and 6th arrondissements, just east of the Jardin du Luxembourg.
In 2009, large-scale excavation work began to create better accessibility to disabled passengers, including new elevators.
In 2010, this work was stopped due to a building permit issue and for more than two years the ticket offices were relocated to a shelter located at street level.
On 14 December 1918, a train carrying United States President Woodrow Wilson and his entourage pulled into the station.
In less than a month, Wilson would be part of the "Big Three" at the Paris Peace Conference, where the Treaty of Versailles was drawn up and signed on 28 June 1919, effectively ending the First World War.