Known for its famous Hortillonnages, or floating gardens, Amiens is no stranger to greenery — in fact, it’s the 4th greenest city in France. But many forget the understated Jardin des plantes, which dates back to the 18th century and is thus one of the oldest in France. Louis XV gifted it to the commune in 1751 on the condition that it be turned into a botanical garden… and no one disobeys the king. Today, you can admire its flourishing and thriving collections as you walk along its paths that cover a hectare. There is also a magnificent greenhouse in the style of Napoleon III that is open for visits. Far from the hustle and bustle, and yet only a 6-minute walk from the city centre.