Paris is not quaint or bucolic. I've known people who expected it to be like that before they visited the place for the first time. They were surprised to find themselves in a crowded, bustling, modern city. Here are some architectural signs of that reality. (As always, you can click or tap on the images to see them at a larger size.)
President Georges Pompidou, who succeeded Charles de Gaulle as president of the French republic and then died in 1974, had the building (above) now known as the Centre Pompidou built 40 years ago. It's in the Beaubourg neighborhood on the Right Bank, right next to the old neighborhood called Le Marais (the swamp). The Pompidou Center opened in 1977 and houses a library, médiathèque, and modern art museum. Some people affectionately refer to the building as « la raffinerie ».
The complex of buildings above has been called la TGB — la très grande bibliothèque — just as the French high-speed train (le train à grande vitesse) is called le TGV. It's a library — it's the new national library or Bibliothèque Nationale and is also referred to as the François Mitterrand library. Mitterrand was president from 1981 until 1995 and sponsored the building of this library, the Louvre pyramid, and a new opera house at the Bastille. The library is supposed to look like four open books standing vertically together, I think.
This last photo shows the 13e arrondissement (district) of Paris, a city which is divided into 20 arrondissements. As you can see, it's almost all modern, with a lot of high-rise buildings. It's in the southeast corner of the city on the Left Bank and is home to a large population of Asian immigrants, meaning it has a lot of Asian groceries and restaurants. It borders on the 5e arrondissement, which is the Latin Quarter.