Colonna Heights certainly has the wow-factor. Right on the corner of Rome's main drag, Via del Corso, this triplex apartment's crown jewel is the rooftop terrace, which boasts 360º views of the city, as well as a dining table, sofas and a barbecue. Inside, the décor is unique, although it is distinct enough that it might not be to everyone’s taste. You should be prepared for stairs, some of which are quite steep, but if you can reach the top, the reward is worth it. Home truths: *Both bedrooms and the study are under the eaves, which could be a problem for taller people *The apartment is set out over three floors, so there'll be a lot of stair-climbing *Guests 5, 6, 7 and 8 would all be on sofa beds and futons in the communal areas