Adjacent districts to the west are the Gutleutviertel and the Gallus around Frankfurt Central Station, the Westend in the north and the Innenstadt in the east.
As there was still no significant residential zone existing in 1891, the area became the central site of the International Electro-Technical Exhibition led by Oskar von Miller.
In the time of the occupation by the American armed forces the district developed an active nightlife, allowed soldiers free rein to endless brothels.
The well-known meaning of Kaiserstraße has been lost among the street traffic, travel from the Alleenring to the Hauptbahnhof is no longer possible through the Kaisersack.
Instead the main traffic vein today is Gutleutstraße, which flows into the theatre tunnel and offers a connection to the old part of town.
Numerous nineteenth century buildings have survived through World War II and became chaste residential houses in the 1950s and 1960s, whilst several supplemented skyscrapers.
Best known are the Silvertower and the Gallileo at Jürgen-Ponto-Platz (named after the murdered president of Dresdner Bank), the Skyper and the Gewerkschaftshaus in Wilhelm-Leuschner-Straße.
On this land Sebastian Rinz, the city gardener, laid out a green area with Mediterranean vegetation which was soon named Nizza in common speech.
The Frankfurt families Guaita and Loeen had already possessed large landscaped gardens in the climatically favoured area of the river west of the old city walls since the seventeenth century.
The reason being that during World War II, the area was only slightly damaged by bombs, and that many of the hotels located there were used by the US occupation forces for the accommodation of military personnel.
The great poverty of the German population and the in comparison very wealthy US soldiers formed the sociocultural background for the emergence of the red light district at this point.
The project was supported by the then Frankfurt police chief Gerhard Littmann, who saw in the creation of an Eros Center in the vicinity of the city the only way to deal with the numerous complaints about "commercial malnutrition" in residential areas.