Located in the North Rhine-Westphalia region of the country, modern Dortmund is vibrant and cultural, known for its good shopping, beer and football. But there is another, altogether gentler, side to this former industrial powerhouse. Dortmund has great theatres and cultural centres, a range of fascinating museums and, with half the city given over to parks and gardens, enough green areas to sooth the senses.

Seoul is a city of contrasts in which the ancient and the modern coexist in harmony. In one sense, it is a hi-tech 21st-century city awash with neon lights and the sights and sounds of a 24-hour metropolis, while at the same time, a city retaining the majesty and graceful ambience of ancient dynasties that once ruled over it. Like the river Han on which it sits, Seoul is constantly moving as it strides boldly into the future, yet simultaneously managing to keep one foot firmly entrenched in its historical past.

Graz – Austria’s culinary and cultural capital. A practical tip from the start: If you want to explore Graz, wear comfortable shoes and loose clothing. Why? Even if Graz is actually small — the second-largest city in Austria with a quarter of a million resident by no means a “big city” — you should be prepared for the fact that time also flies in the many short lanes. Comfortable footwear goes easy on busy feet here. In the historic old town with its roads, streets, squares and courtyards there’s lots to explore and even more to enjoy.

Aarhus lives up to its "smallest big city" motto. It’s petite enough to conquer in a weekend, yet buzzing with enough energy to rival Copenhagen. This is where Danish hygge meets youthful innovation: think Michelin-starred dining alongside quirky food markets, avant-garde architecture framing half-timbered houses, and world-class museums (don’t miss the rainbow panorama at ARoS). By night, craft cocktail bars and live music venues prove size doesn’t dictate ambition.