A winding stone bridge links the mainland to this rocky islet, followed by 240 steps up to the small hermitage of San Juan de Gaztelugatxe. The chapel dates back to the 10th century, although it has been rebuilt multiple times following fires and pirate attacks. Even if the chapel is closed (which it often is), the climb is worth it for the stunning sea views, the cliffs carved into arches, and the remote, windswept feeling at the top - Game of Thrones fans will recognise the setting as Dragonstone. It’s about a 45-minute drive from Bilbao. You can also take a bus to Bermeo, a fishing town nearby, and continue by taxi or local bus. The trail is steep and uneven, so good shoes help.

Lisbon trams have transported people through the city since 1873. Even if today trams compete with the metro, they are still the perfect way to see the city and to get an overview. Tram number 28 is an old-fashioned vehicle that goes around town and you can hop on and off during your trip.

Built in the 17th century, Sidi Youssef Dey Mosque was the first Ottoman-style mosque in Tunis, designed by Andalusian architect Ibn Ghalib. Its eclectic mix of influences reflects the era’s cultural exchanges. Flanked by Turkish souqs — El Trouk (once tailors, now clothing and embroidery), El Berka (formerly a slave market, later jewellery traders), and El Bechamkia (slippers and shoes) — the mosque served the city’s Ottoman-era merchants. The minaret, topped with a distinctive green-tiled pyramidal crown, became a model for later Ottoman designs in Tunis. Its octagonal shape, novel at the time, subtly asserted Ottoman authority. Inside, the mosque houses the tombs of Youssef Dey, commander of the janissaries, and his family. Sidi Youssef remains an active mosque, so plan visits outside prayer times, when non-Muslim visitors may enter. Its striking architecture, both inside and out, anchors a neighbourhood rich with history.