Arriving from South on motorway A35, exit on A350 (direction Wacken) towards Place de Bordeaux. Follow the signs indicating "Institutions européennes" until you arrive on the "Allée de la Robertsau", at the end of which the Villa Schützenberger is located only a hundred meters before the Council of Europe's main building.
Arriving from North on motorway A35, take exit nr 3 ("Wacken"). Follow the sign "Wacken" on the roundabout and join motorway nr A350. There, follow the signs indicating "Institutions européennes" until you arrive on the "Allée de la Robertsau", at the end of which the Villa Schützenberger is located only a hundred meters before the Council of Europe's main building.
The Observatory is situated just next to the "Orangerie" bus stop. The number 6, 30 and 72 buses all stop at this stop. Consult their routes and timetables here.