Kilkenny is a city where history sits beside everyday life, and stories from centuries past shape the streets visitors walk today. At its heart stands Kilkenny Castle, first built in the 12th century and home to the Butler family for more than 600 years. From here, the Medieval Mile creates a natural path through the city, linking key sites such as St. Canice’s Cathedral. Its round tower, one of the few in Ireland still open to climb, rewards visitors with wide views across the rooftops.

Kanazawa, Japan, is a captivating city that offers a unique blend of historical charm and cultural richness. Known for its well-preserved Edo-period districts, Kanazawa is a treasure trove of traditional Japanese experiences.

Seen from the train, Durham presents a magnificent sight, with cathedral and castle perched atop a bluff enclosed by a loop of the River Wera, and linked to the suburbs by a series of sturdy bridges.

Kalmar Union, combination of the crowns of Denmark, Sweden, and Norway, effected at Kalmar, Sweden, by Margaret I in 1397. Because all three crowns were elective, the union could not be maintained by inheritance. Margaret's successors controlled Sweden intermittently until Gustavus I of Sweden dissolved the union (1523). Norway became independent in 1814.

Karlstad, Sweden, is a city that elegantly combines natural beauty with cultural charm. Situated on the banks of Lake Vänern, Sweden’s largest lake, Karlstad is renowned for its picturesque waterfront and abundant sunshine. The city’s Värmlands Museum provides an enriching experience with its exhibits on local history, art, and the region's unique cultural heritage.