Wet, Padova, Italy. Padova's Botanic Garden is not the largest or most spectacular in Europe, but dates back to 1545 and can claim to be the "most ancient university garden in the world."

Among its many offerings are a medicinal plants garden, a collection of flesh-eating plants, and an assortment of textured and fragrant plants selected for the enjoyment of the vision-impaired (complete with labels in Braille).