The Inner City can be defined as the metropolis of Copenhagen, which encompasses the city's oldest district with pretty narrow streets and original houses. The city centre is full of shops, bars, restaurants, parks, numerous canals and, of course, Nyhavn, the colourful harbour of Copenhagen. The main street of Inner City is Strøget, which goes from the town hall square to Kongens Nytorv. Strøget is always frequented by a myriad of street performers, but do not forget to take a trip to the pretty side streets like Frederiksberggade, Nygade and Vimmelskaftet.

Built in the 1300s to protect the Alcazaba and house troops, Gibralfaro Castle still has walkable ramparts with some of the best views over Malaga, the port, and the coastline. Inside, there’s a small military museum. The name comes from Jabal-Faruk, meaning 'hill of the lighthouse' in Arabic. The castle was also the site of a long siege in 1487, when Catholic forces took the city from the Moors.

One of the emblems of the city. The striking Wallfahrtsbasilika, the pilgrimage basilica picturesquely enthroned above Linz, is easily reachable via Europe’s steepest mountain railway. Linz’s Zoo, the popular fairy-tale world of the Grottenbahn, as well as a magnificent view of Linz, await visitors to the mountain.

With its 62 halls and 100,000 paintings, the Tretiakov Gallery contains the world’s largest collection of Russian art. Fortunately, all of these pieces are not all displayed together, but a few at a time.