Bulgaria’s coastal bunkers, remnants of its WWII alliance with Nazi Germany, are scattered along the Black Sea coast. In Burgas, one bunker sits just off Central Beach, between the Pantheon of the Fallen Antifascists and the Flora Burgas Expo Centre. Another can be found near Lake Atanasovsko, known as the Bunker at the Salt Pans. Once military outposts, these structures now stand as silent reminders of a complex past, with some repurposed into cafes and covered in murals, or left abandoned, offering a glimpse into 20th-century history.

The Church of Saints Cyril and Methodius, completed in 1907, honours the 9th-century Byzantine brothers who evangelised the Slavs and are credited with creating the Cyrillic alphabet. Designed by Italian architect Ricardo Toscani, this Orthodox cathedral features a three-nave basilica with marble columns and a striking stained-glass depiction of the saints. Known for its intricate iconostasis and frescoes by renowned Bulgarian artists, the church underwent foundation repairs in 2016 and remains a significant cultural and spiritual landmark.

Enclosed within a protective wall reaching up to 20 metres in width, the Ciudad Amurallada (or Walled City) is Cartagena's old beating heart. Packed with well-preserved colonial buildings, it's a pleasure to stroll through; its streets of colourful low-rise merchant homes marked by iconic balconies are now mostly walked by either tourists or students who attend classes at the University of Cartagena during the day and linger for meals and nightlife after school is out. Cafes in Plaza Aduana and Plaza Santo Domingo teem with patrons, forging an incredibly jovial atmosphere; the districts of San Diego and El Centro are two not to be missed. There is plenty of food and shopping to be had, with a mixed bag of world-class restaurants and street food hawkers and the incredibly photogenic palenqueras — women dressed in vibrantly coloured clothing selling fruit in the streets — images of whom have become emblematic of Colombia as a travel destination.

Set along the Rhône River, Avignon is a captivating city brimming with history, art, and culture. From 1309 to 1377, the city served as the seat of the Catholic popes and remained under papal rule until it was incorporated into France in 1791. Avignon's rich papal history is evident in the formidable Palais des Papes, located at the heart of the city and encircled by medieval stone ramparts. But Avignon has much more to offer than just its famous palace. From the bustling Place de l'Horloge to the charming cobblestone streets of the Old Town, Avignon is a city that delights at every turn. With its sunny climate, rich culinary traditions, and laid-back lifestyle, Avignon is truly a gem of the South of France.