This ivy-draped palazzo in a picturesque square is deservedly popular, particularly with politicians (it's close to the Senate). The reception is dotted with an eclectic mix of arty objets, including ceramics by Picasso. 'Classic' rooms are decorated with faux-Renaissance columns and flouncy curtains, while 'deluxe' rooms have parquet floors and elegant furnishings. The Richard Meier-designed 'executive' rooms on the third floor have sliding oak panels, black leather sofas, Bose sound systems and Carrara marble bathrooms. Though stylish, the rooms are far from cosy, with furnishings more suited to swish conference facilities than to luxury hotel accommodation. The roof terrace has spectacular views though.