Florence around 1900 is the "capital of the Renaissance" and one of the most beautiful cities in the world: a glamorous travel destination, a refuge, and an aesthetic utopia for art lovers of all kinds. Guiding us through this old European city, which can be rediscovered through this book, is one of those travelers to beauty: the Hamburg art historian Aby Warburg. From his letters and diaries, as well as numerous other sources, Bernd Roeck paints the intellectual portrait and the Arcadian image of old Florence in its transition to modernity. For many, Florence remains a place of longing to this day. The spiritual guides through this Arcadia of the 19th century are Aby Warburg and his wife Mary, whose extensive diaries and mutual correspondence form the foundation of this book: starting with their love story against the backdrop of the city, as well as Warburg's Renaissance studies that established his worldwide fame.