Eu finalmente encontrei um passeio a pé na região, em Bonn, para ser específico. O site é aqui .
Como os detalhes estão enterrados em um PDF, vou citá-los aqui.
Bonn - Roman Settlement, Baroque Residence and Beethoven City Discover Bonn´s numerous sights on a walking tour through the historical city centre
The historical centre of Bonn offers an abundance of sights which are easily reached on foot. The major points are the Beethoven monument, the romanesque Minster Cathedral, the Electors palace (nowadays the University) with the elegant Hofgarten and the baroque City Hall. The tour also takes you to the banks of the Rhine, near the Opera, from which river excursions on the boats of the Weiße Flotte (white fleet) are possible. The imposing view of Germany´s oldest nature park Siebengebirge (seven hills) can be seen from the banks of the Rhine. The tour ends at Ludwig van Beethoven‘s birthplace in the Bonngasse. Here you have the opportunity to visit Beethoven´s birthplace with the Digital Beethoven House on your own. The entrance fee must be paid separately at the Beethoven House.
Date and Time: Saturdays from 27 April to 26 October at 11 am
Meeting place: Bonn-Information, Windeckstraße 1/ am Münsterplatz (nearby Minster Cathedral Square)
Duration: around 1 ½ hours
Price: Adults 9 €, with reduction 5 € (children aged 12-17, students, disabled)
Eu só descobri quando paguei, mas a turnê é na verdade conduzida em alemão e também em inglês, se houver pessoas que falam inglês se juntando à turnê. Como eu era o único orador inglês na turnê, me senti um pouco estranho, mas o tour ainda era muito interessante e eu o recomendaria.