Prague is one of the very few great European capitals whose historic core survived the twentieth century almost intact, and its centre is inscribed on the UNESCO World Heritage List. The episode follows the city's essential geography: the castle district on the heights, with its cathedral and palaces; the descent to the Vltava; the Charles Bridge with its file of statues; the Old Town Square, its astronomical clock and the towers that frame it; and the streets of the former Jewish quarter. What makes Prague exceptional on screen is stratification, Romanesque cellars beneath Gothic houses, Baroque facades on medieval plots, then art nouveau and cubism, all within a few hundred metres. Filmed in 4K across the seasons and the hours, the programme delivers both the postcard images a broadcaster expects and the architectural detail that justifies a serious cultural slot.