Teatro dell'Opera di Roma is an Opera House that still preserves its distinctive features of the 19th century. Since opening its doors in 1880, this historic venue has hosted numerous notable productions, including the world premiere of Puccini's iconic opera, Tosca. Its resplendent red-and-gold interiors and rich historical significance make it a captivating destination, appealing even to those not particularly drawn to opera. Note that during summer, the ravishing ruins of the Baths of Caracalla are the venue for the opera company's outdoor performances.

Ponte Dom Luís I (The Dom Luís I Bridge), one of Porto's most famous landmarks, is a 172 metres double-deck metal arch bridge--the longest of its kind in the world--and links the cities of Porto and Vila Nova de Gaia over the River Douro. It is well worth a visit, especially to admire the sunset.

Dedicated to the Romantic poets — Keats, Shelley, and Byron — who each stayed in Rome and died tragically young, this charming period house contains a chain of rooms lined with rare books and relics, including Keats' last resting place. There's also a gift shop, an introductory film, and a spacious terrace.