Beyond its most iconic landmarks, this book reveals a more discreet and unexpected side of Art Nouveau across Europe. This visually rich atlas explores a lesser-known side of Art Nouveau, focusing on places that remain largely hidden from public view. Rather than revisiting familiar masterpieces, it uncovers a more intimate heritage, bringing to light overlooked sites and unexpected architectural gems across Europe. Through a combination of photography and text, the book offers a fresh perspective on a movement often reduced to a handful of iconic examples. With a strong focus on detail, it highlights the richness of ornaments, motifs and symbolic elements, inviting readers to look more closely and rediscover the depth and diversity of Art Nouveau.