This masterpiece of Italian Gothic architecture is most famous for what it’s missing—a roof. The abbey was built in the late 1100s and has been a dramatic-looking ruin for centuries. It’s open to the sky now, but still feels grand in a stripped-back kind of way. Just up the hill, the Rotonda di Montesiepi is worth a quick stop too—inside you’ll find a sword embedded in stone, tied to the story of Saint Galgano.

Dubrovnik’s baroque Assumption of the Virgin Mary Cathedral was built in the 18th century over the earlier Romanesque Cathedral dating to the 12th century, which was destroyed in the great earthquake of 1667. The Treasury inside the cathedral houses 132 relics of saints dating from the 11th to the 19th centuries. The priceless head, arms and leg relics of St Blaise that were crafted by Dubrovnik goldsmiths date between the 11th and 12th centuries.

While seasoned travellers may venture into Cartagena's gritty Bazurto Market on their own, those not yet toughened by locals-only markets of the region may prefer to explore as part of a guided tour. This sprawling market, where trade starts before the crack of dawn, features incredibly fresh produce and seafood from Cartagena and beyond. Much of it makes its way to the tables of local fine dining establishments within the space of the same day. There is plenty to look at and taste, including local street food and multiple succulent varieties of tropical fruit you're unlikely to have encountered before.

The Zeppelin museum is a must-see for all aviation fans, as it boasts the world’s largest selection of airships, including full-scale reconstruction of parts of the famous Hindenburg Zeppelin.