room 20 ECHOES

Westduinpark, Den Haag, South Holland 2566 DP, Netherlands


If you hold a SubstanzWalk Map in your hands, please travel to Station Markenseplein, Den Haag, The Netherlands (Tram 12/Bus22).

If you are not already in possession of a SubstanzWalk Map, please download the printable map with information about preparations, instructions and the route here:

(donations are welcome and can be made via links provided further below)

Alexander Johannes Heil SubstanzWalk - Introduction to Substanzraum Geo-located Audio Walk Location: Westduinpark, The Hague, The Netherlands Narration: Mabel Calvert Verbruggen Duration: ca. 45min 2020

Substanzraum - space of substance - is a new approach to global space. This slightly surreal audio walk explains to you the basics of this new conception of space itself. The audio walk is composed with a mixture of synthetic and recorded environmental sounds. These sounds blend with the actual sounds of your surroundings and evoke confusions which eventually emphasise the latter. Narrated text fragments accompany this geo-located audio walk.

SubstanzWalk is a free accessible artwork for the public space. Nevertheless, donations are more than welcome and appreciated.

You can make your donation here with PayPal:

or here via Betaalverzoek:


Alexander Johannes HeilAlexander Johannes Heil

Alexander Johannes Heil (born 1986 in Hamburg, Germany) received his B.Sc. in Architecture with a focus on architecture-theory and -design in 2017 at the Technical University Berlin and obtained his master's degree (M.Mus) in summer 2020 at the ArtScience Interfaculty (Royal Conservatory and Royal Academy of Art, The Hague). His work has recently been shown at the Royal Academy of Art The Hague, the Royal Conservatory The Hague, in group exhibitions in The Hague, and two solo exhibitions in Berlin (2017 and 2018). Currently he is exploring a new concept of space, which is analog to the dialectic of mold and cast. It considers global space filled with actual substances traveling throughout our planet, shaping each other through time and gravity and thus shaping the space we live in. This conception of space is called Substanzraum, the space of substance.



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