Explore details about location Avenue Montgolfier - Montgolfierlaan. Avenue Montgolfier - Montgolfierlaan is a location situated within the Woluwe-Saint-Pierre - Sint-Pieters-Woluwe alongside other areas such as Avenue Saint-Jean - Sint-Janslaan, Chaussée de Tervuren - Tervuursesteenweg, Square Léopold II - Leopold II Plein.