O Cebreiro On the French route of the Pilgrim's Route to Santiago de Compostela, O Cebreiro has a Grail some consider to be sacred and others to be miraculous.
O Grove On old maps, O Grove was an island. Today, it is joined to the mainland thanks to the south-westerly winds, which have slowly gathered sand to form the isthmus of the beach of A Lanzada.
Obanos Every two years this village in Navarre celebrates the Mystery of Obanos, a legend whose origins go back to the Middle Ages.
Ocaña Its urban centre, with a medieval layout, large mansions, palaces, convents and churches, is one of the most important throughout Castilla-La Mancha.
Oia Between Baiona and A Guarda is Oia, where the coastline stands firm against the force of the ocean. This spectacular sight can be seen from the mountains, where wild horses graze freely.
Olite It is a Historic-Artistic Site where traces of a Roman and Gothic presence can be found in its walled enclosure and in the splendour of the medieval court of Carlos III in its castle-palace.
Oliva Bordering on the province of Alicante, Oliva is the second most important town in the region of La Safor.
Olivenza By rule of the 1297 Alcañices Treaty, Olivenza belonged to Portugal until 1801. Both Spanish and Portuguese monuments were restored thanks to a municipal initiative.
Olot It is the capital of the region of Garrotxa. The medieval buildings that made up this town were destroyed in the 1427 and 1428 earthquakes. At present, the most remarkable feature of the city is its intense cultural and artistic life.
Olvera One of the most characteristic towns in the mountains of Cadiz. Set atop a spur, the whiteness of its houses reflects the splendour of the sun of Andalusia.
Oña A remarkable village since the times of Fernán González, it grew under the protection of the monastery of San Salvador and the grace of the monarchs.
Oñati Located at the heart of peninsular Euskadi (the Basque Country), this town takes up a beautiful valley surrounded by green mountains on all sides except the southern one, where the giant Aloña limestone formation sits.
Onda In the spurs of Sierra Espadán we find Onda, a historic village in the interior of Castellón, which holds an important monumental heritage, and has a long tradition in the production of ceramics.
Ondarroa Ondarroa is a fishing and canning port. At the top of town, the church of Santa María and the Likona Tower are its chief characteristics.
Jarandilla de la Vera Charles I of Spain lived in Jarandilla Palace, constructed in the 15th century, while Yuste was being prepared. The palace is now a Parador hotel.
Javea / Xàbia Located between the capes of San Antonio and de la Nao, Jávea is one of the most important tourist destinations on the Alicante Costa Blanca.
Jerez de los Caballeros A city in Badajoz where many different cultures, knowledge and artistic styles overlap, from prehistoric times to Gothic and Baroque.
Jerez de la Frontera Jerez de la Frontera, well known for its wines, its horses and its flamenco, preserves a historic centre that has been declared a historic artistic site.
Jimena de la Frontera Situated very close to Algeciras Bay, Jimena de la Frontera is an exceptional spot where the Ronda Mountains and the Strait of Gibraltar meet. Its old town has been declared Property of Cultural Interest.
L'Alfàs del Pí L'Alfàs del Pí is 48 kilometres from Alicante. This small town is situated on the Mediterranean coast and is surrounded by plantations of fruit trees, alternating with olive groves and pine woods.