Places where I have worked, i.e. performed research, was teaching, attended a meeting, presented a lecture, attended a colloquium, a workshop, a symposium, a conference or something similar to that.

• Austria: Vienna, Yspertal
• Belgium: Antwerpen, Brussel, Genk, Hasselt, Leuven
• Czechia: Prague
• Estonia: Tallinn
• France: Bordeaux, Grenoble, Nancy, Nice, Paris, Rousset, Sophia Antipolis
• Germany: Aachen, Berlin, Dagstuhl, Dresden, Duisburg, Gummersbach, Hannover, Karlsruhe, Kleve, Lübeck, Marburg, München, Sankt Augustin
• Hungary: Budapest
• Ireland: Dublin, Dundalk
• Italy: L'Aquila, Bertinoro, Roma
• Netherlands: Amersfoort, Amsterdam, Amstelveen, Apeldoorn, Arnhem, Baarn, Beekbergen, Berg en Dal, Bergen op Zoom, Best, Bloemendaal, Breda, Bunnik, Delft, De Bilt, Den Haag, Den Helder, Deventer, Doorn, Driebergen, Eindhoven, Enschede, Etten-Leur, Haarlem, Heerlen, Heijen, Hengelo, ’s-Hertogenbosch, Hilversum, Hoge Vuursche, Hoofddorp, Groesbeek, Groningen, Leeuwarden, Leiden, Leidschendam, Lochem, Maastricht, Malden, Mariaheide, Molenhoek, Mook, Nes, Nieuwegein, Nijmegen, Noordwijkerhout, Nunspeet, Oosterbeek, Ooij, Plasmolen, Rotterdam, Schiphol, Soesterberg, Ubbergen, Uden, Utrecht, Valkenburg, Veenendaal, Veldhoven, Venlo, Vorden, Woerden, Zeist, Zoetermeer, Zutphen and probably many other places that slipped my mind.
• Poland: Wroclaw
• Rumania: Cluj
• Slovakia: Komarno
• South-Africa: Pretoria, Cullinan
• Spain: Madrid
• Cyprus: Larnaca

• Sweden: Båstad, Goteborg, Stockholm, Uppsala
• United Kingdom: Bath, Bristol, Cambridge, Canterbury, Edinburgh, Hintlesham, London, Manchester, Milton Keynes, Norwich, Nottingham, Southampton, St. Andrews
• United States of America: Provo (Utah), Norman (Oklahoma), New York (New York), Santa Fe (New Mexico), Stanford (California)