Where in the world is Ainsa, Spain . . . . ?
Ainsa is situated in the foothills on the southern side of the Pyrenees mountains, which run East-West and form the border between France and Spain. Ainsa is 45km south of the French border and approximately half way between Barcelona and Pamplona.
From Wikipedia:
Ainsa is the main town in the Ainsa-Sobrarbe municipal area, in Aragon, Spain. Besides the surrounding mountain landscape, the main sights of the town are the 12th-century Iglesia parroquial de Santa María church and the 11th-century castle are the main sights of the town.
In the cycling world, Ainsa is most famous for being home to the Zona Zero MTB trails which, in 2015, hosted Stage 7 of the 2015 Enduro World Series races.