Spain's Aragon region isn't exactly famous for its forests—it's more 'sun and scrub' than 'shade and shuffle.' And yet, climb the slopes of Moncayo and you'll walk straight into a twist ending: a dense, whispering beech forest. The mountain is a climate roller coaster. At the bottom? Mediterranean shrubs. Midway up? Oaks and pines. Push further? Suddenly you're in Peña Roya, a beech wonderland that seems to say, 'Surprise, leaf it to me!'

This time of the year is their show-off season. The forest becomes a patchwork quilt of red, gold and orange, while hikers crunch happily through the leaves. Deer tiptoe through the trees, wild boar snuffle in the undergrowth and birds like Eurasian goshawks and golden eagles supply the soundtrack. And just when you think it's all about trees, Moncayo reminds you of its human side: monasteries tucked into the mountainside, hermitages clinging to rocks and villages that once treated the forest as their pantry. Today, people come not for timber, but for trails, photos and that sweet mountain air.