The Squam Lakes Natural Science Center is the only nationally accredited institution by the Association of Zoos and Aquariums in Northern New England. It offers a range of educational experiences, featuring live animal programs and exhibits that highlight New Hampshire's unique ecology.

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.

Getterön is a nature reserve that encompasses an area of 3.5 square kilometres, including parts of the Getterön peninsula. It's mainly popular due to its exceptional bird watching opportunities, providing hiding spots and observation positions that allow visitors to get up close to the birds without disturbing them. During spring and autumn, large numbers of species regularly breed or nest here. In addition to the permanent bird residents in Getterön, a large number of temporary guests flock to the area, contributing to a remarkable total of 336 recorded species in the region.