Rhinoceros by Alda Fendi is an art gallery which features 25 apartments , a rooftop restaurant and three terraces with outstanding view of the City. It is located next to the Arch of Janus , 20 minutes walking distance from the Spanish Steps and 15 minutes walking distance from the Colosseum. All the apartments are of a very generous size, from 40sm to 90sm , all appointed by french archistar Jean Nouvel. All the apartments come with a fully equipped kitchen, there is of course a "fine dining" rooftop restaurant . Service is all around the clock , with concierge/butlers available .