Burgplatz is where the little River Düssel, which gave the town its name, flows into the Rhine. In the background is the former collegiate church, St. Lambertus, with the shrine of St. Apolinaris. Next to the bridge over the Düssel, the monument to Düsseldorf being granted the privileges of a town demonstrates impressively more than 725 years of town history (town status granted in 1288). The square is dominated by Alter Schlossturm, the old palace tower (now the Schifffahrt-Museum navigation museum) and last testimony to the princely palace from the 13th century that fell victim to flames in 1872. The generously proportioned Rhine embankment promenade is considered one of the most beautiful on the Rhine. Upriver, the Medien Hafen is characterised by outstanding architectural creations, and the elegant district of Oberkassel on the opposite bank by art-nouveau facades.

The University of Latvia Botanical Garden has something to offer at any time of the year, but summer is the time it should definitely not be missed. Bring a picnic set and retreat from the heat underneath the lush green trees.

One of the biggest archaeological sites on the Balearic Islands. On a clear day, you can see all the way to Mallorca.

Menorca's capital Mahón, or Maó, in Catalan, boasts terrific sights and a colourful history that is best explored by a boat trip along the harbour. Do also stroll around, starting at Placa Colona, and lose yourself in a warren of tight alleyways.