Named after the 4th-century bishop Severin of Cologne, St Severin is a Lutheran parish church in Keitum, constructed in the Romanesque style and first documented in 1240. Step inside and you might be treated to the choir's melodic tunes.

Tunis reveals its scholarly heritage through a collection of beautifully preserved madrasas, each bearing witness to centuries of intellectual pursuit. Over 20 madrasas are spread over the Medina of Tunis, some of them seven centuries old. The role these madrasas played has evolved over time. The Madrasa Slimania, founded by 18th-century ruler Ali Pasha, stands out with its ornate prayer hall and elevated entrance porch. Where student cells once housed scholars, medical professionals now work beneath the same vaulted ceilings. Nearby, the Madrasa El Bachia has transitioned from Quranic school to artisan workshops, its courtyard fountain silent but its creative spirit alive. The Madrasa Palmier (or Madrasa Ennakhla) maintains its original purpose as a centre for Quranic studies, its namesake palm still shading the courtyard behind formidable studded doors. Meanwhile, El Khaldounia represents a bridge between tradition and modernity. Established in 1896 near Souk Al Attarine, this progressive institution now serves as a bilingual library, honouring Ibn Khaldoun’s legacy of critical thought.

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.