On January 18, 2025, the Villejuif – Gustave Roussy station opened its doors, completing the southern extension of Line 14 of the Grand Paris Express. Designed by architect Dominique Perrault, this station features a 62-meter diameter circular structure and a depth of 51 meters, with a semi-crystalline roof that allows natural light to reach the platforms. Starting in 2026, it will be joined by the first stations of the southern section of Line 15, continuing the transformation of the network.