Gare d'Austerlitz is a station on the Paris Métro, serving line 5 and forming the eastern terminus of line 10 in the 5th and the 13th arrondissements. The Line 5 station is open to the exterior though under the roof of the mainline Gare d'Austerlitz. Leaving this station to cross the Seine, Line 5 goes into a pronounced drop and curve known as le toboggan ("the slide").