The Dancing Towers and the Arcotel Onyx mark the eastern end of the Reeperbahn, the legendary street in Hamburg.

The Dancing Towers and the Arcotel Onyx serve as the architectural markers for the eastern end of the Reeperbahn. This legendary street is located in Hamburg, where these two specific structures define the boundary of the area. Both the Dancing Towers and the Arcotel Onyx are positioned at this specific terminus, contributing to the urban landscape of the city's famous district as reported by the provided sources regarding the geography of the Reeperbahn.