Self-guided Sightseeing Tour #11 in Aachen, Germany

The Aachener Landgraben is the name for the fortification along the almost 70 km long border of the former Aachen Empire. Individual sections can already be documented for the 14th and 15th centuries, but it was not until the beginning of the 17th century that the construction of the Landwehr was completed throughout and on 11 April 1611 by Albrecht VII of Habsburg, the acting regent of the Spanish Netherlands in Brussels, contractually legitimised with the aldermen and the city council in Aachen.

Wikipedia: Aachener Landgraben (DE)

Gut Hasselholz is a listed estate in Aachen, Germany. In the names Hasselbach and Hasselholz, the word Hassel is interpreted as an early name for foals.

Wikipedia: Gut Hasselholz (DE)

The Burghaus Classen is an upper-middle-class residential building in Aachen, Fichthang 20.

Wikipedia: Burghaus Classen (DE)

The Von-Halfern-Park is a park and arboretum in the southwest of Aachen on the Lütticher Straße, in the direction of Kelmis/Belgium, located directly and seamlessly on the northern edge of the Aachen city forest. It was laid out in the style of an English landscape garden and contains trees and plants up to 200 years old, including from North America, Europe and Asia.

Wikipedia: Von-Halfern-Park (DE)

The Aachen Public Observatory is a listed observatory in the south of the city of Aachen.

Wikipedia: Volkssternwarte Aachen (DE), Website

Kaiser-Friedrich-Park is a park in the south of Aachen, Germany, named after the German Emperor Frederick III, who died in 1888.

Wikipedia: Kaiser-Friedrich-Park (DE)