Architecture of the Paris Métro feature stonework, statues and other replica museum pieces, under subtle lighting, which together make the station into an antechamber of the Musée du Louvre. Until the reconstruction of the Louvre in the late 1980s, this station was the closest to the museum's entrance. When I. M. Pei's pyramid was added to the Louvre and made the central entrance at the end of the 1980s, the neighboring metro station Palais-Royal became the closest to the museum entrance; so close, in fact, that a subterranean corridor was constructed leading directly from the museum to the Palais-Royal station, which was renamed "Palais-Royal –
Paris in the Belle Époque way across Paris from Boulogne to Vincennes in 1856. But then it was purchased by the CGO, the main omnibus line, and remained simply a curiosity. Only in 1873 did the tramway begin to gain importance, when the CGO lost its monopoly on city transport and two new companies, Tramways Nord and Tramways Sud, one financed by Belgian banks and the other by British banks, began operating from the center of Paris to the suburbs. The CGO responded by opening two new lines, one from the Louvre to Vincennes, the other following the line of fortifications around the city. By