A lot of temporary and permanent buildings were constructed for the 1900 Universal Exhibition in Paris. Among the permanent ones you can mention Grand Palais and its neighbour Petit Palais, which actually both have been recently “freshened up” and are still used for exhibitions of all kinds. From the Grand and Petit Palais you can cross the Seine River on your way to the Invalides, using the Pont Alexandre III, a magnificent bridge, named after the father of the last Russian emperor, Nicolas II and also built to be ready for the 1900 Universal Exhibition. Also the bridge has been “freshened up” - a couple of years ago - with a lot of paint and gold and it looks today as new.
You can find the original photos from this patchwork on my other site - "Peter - photos".