In 1990 the first remains of what would be one of the most interesting monuments of the city of Cartagena were discovered accidentally. It is one of the largest and most comprehensive theatres throughout Spain. It was built in 44 BC when Octavian Augustus was emperor and Cartagena was a Roman colony (Colonia Urbs Nova Carthago) going through a period of high population and economic development; at that time it was called Carthago Nova. From its location, the theatre has witnessed different periods of the history of Cartagena, since the Roman Empire, up to the present, overlapping constructions of each of the historical periods. The Roman Theatre faithfully followed the theatre model proposed by Vitruvius. It was built almost entirely in the rock on a hill. https://www.murciaturistica.es/en/monument/teatro-romano-349/

The Caliph Abd al-Rahman III was a great promoter of culture and a skilful politician who transformed his dominions into the most prosperous lands in the West at the time, comparable only with Baghdad and Byzantium. The city of Medina Azahara has a practically rectangular floor plan. It was built on raked terraces which made use of the slope of the mountainside. Each terrace was separated from the others by walls, which divided the city into three parts. The Alcázar Real palace is located on the highest and intermediate levels, while the lower part stood outside the walls and was used for dwellings and the mosque. There are still remnants of tiled borders, paintings and columns in the composite and Corinthian styles. Visitors should not miss a visit to the two recently restored rooms. It was declared a National Monument in 1923. To conclude the visit, the archaeological site also has a visitor centre which serves as a starting point for the tour. The centre is located underground in the style of an archaeological site, and features a collection of exhibits from the most important periods in the history of Medina Azahara. The tour of the visitor centre lasts about one hour and includes audiovisual shows, and continues with a visit to the archaeological site (which can be reached by bus from the same building). https://www.spain.info/en/que-quieres/arte/monumentos/cordoba/medina_azahara.html

In 1264 the troops of Alfonso X conquer Jerez definitively to the Muslims. At that time, the monarch gave the Dominicans a military building of Islamic origin located in front of the door of Seville, to found their convent there. The first century of existence of the monastery of Santo Domingo had to be very hard, since the attacks by the Nasrid Kingdom of Granada and its North African allies were constant. The convent of Santo Domingo remained a united group until 1835, when the different confiscations of the liberal governments of Isabel's reign decreed the exclaustration and seizure of the assets of the convent. Although the church remained open to worship, the cloisters were sold. In the beginning, the owners were Los González, an important family of winemakers from Santander Mountain, who installed here the so-called Museum of Santo Domingo, a kind of trinket in which works of art, furniture and other decorative objects were sold. Then the complex became the property of the Díez family, who installed a cellar in the old bedroom and made a series of somewhat aggressive works with the monument. Los Dietros sold Los Claustros to the Rumasa holding company, which was expropriated in 1983, becoming the property of the City Council, which used it as cultural equipment for years. In 1999 the complex was closed for restoration, reopening its doors in 2012. http://www.turismojerez.com/index.php/en/what-to-visit-in-jerez/culture-3/jerez-monumental-secular-monuments/item/1455-los-claustros-de-santo-domingo?catid=102

The Alcazaba, with its 1430 m. walled perimeter is Spain’s second-largest Muslim construction, after the Alhambra Palace in Granada. It was built at the behest of Abderrahman III in the tenth century after the founding of the city. It is a stronghold which housed three campuses; the first two Muslims and one Christian, last built after the conquest of the city by the Catholic Monarchs, which occurred in 1489. The fortress is situated on a hill, overlooking the old centre of the city, the medina. In it, we find a first enclosure where there is a large garden and ponds constructed during the Muslim period. The second area, the vast palatial residence of King Almotacín, stood during the eleventh century. This consisted of a public area, where today are the caliphate wells of the tenth century, a Christian arch of the 16th century. Finally, is the last enclosure of the fortress, Christian, and ordered to be built by the Catholic Monarchs, after the taking of the city. It is a Christian castle within the Muslim fortification. https://www.turismodealmeria.org/en/motivo-tematico/the-alcazaba-fortress/

Is a Neoclassic-converted building in the town centre. Built in 1731 and restored in 1982. The building blends into the portico space of the Plaza de España. Designed by the architect Justo A. de Olaguibel. http://www.spain.info/en_IN/que-quieres/arte/monumentos/alava/casa_consistorial_de_vitoria-gasteiz.html

The O Castro site is Vigo’s archaeological site par excellence: this was the origin of what is now the largest city in Galicia, between the second century BC and the third century AD. When you step on the stones of this museum site, the O Castro de Vigo. A Orixe da cidade, you’ll discover where the first inhabitants of Vigo lived. The Castro is a 1 mile² archaeological site that includes the reconstruction of three castreño buildings pertaining to one of the largest and most evolved towns in Galicia. This small part of the Vigo oppidum shows us how people lived in castros 2,000 years ago. http://www.turismodevigo.org/en/o-castro-site

Peñafiel castle is built of Campaspero stone and is an example of the German Gothic style. It is 210 metres long by 33 metres wide.The castle is located on a hill overlooking the valleys of Duratón and Botijas. Its exterior is uniform in appearance, and it has a single door. http://www.spain.info/en_IN/que-quieres/arte/monumentos/valladolid/castillo_de_penafiel.html

A spectacular place, a hidden corner by Cabo de Gata lighthouse, where yesteryear fishermen plied their craft and is now a perfect site for diving, as you can see from this beautiful photo. http://www.andalucia.org/en/keep-your-best-you/moments/arrecife-de-las-sirenas/

Most of the 1,200 objects on display in this museum date from the period between the Upper Palaeolithic and the Iron Age. http://www.spain.info/en_IN/que-quieres/arte/museos/cantabria/museo_de_prehistoria_y_arqueologia_de_cantabria.html

This building was the royal residence of the Christian monarchs and subsequently the site of the Courts of the Holy Offices, a civil prison, and finally a military prison. It is set among magnificent gardens, including the garden known as the Avenue of the Monarchs which features statues of all the monarchs who had connections with the palace-fortress. It was declared a Historical Monument in 1931. The building is also part of the area declared a World Heritage site by UNESCO in 1994. Since 1986, its gardens have been protected by town planning laws. It stands on top of the remains of the former caliph's palace. http://www.spain.info/en_IN/que-quieres/arte/monumentos/cordoba/alcazar_de_los_reyes_cristianos.html

Atapuerca is one of Europe's most important archaeological sites. It was designated a World Heritage Site by UNESCO in 2000, and a Site of Outstanding Universal Value, also by UNESCO, in 2015. http://www.spain.info/en_IN/que-quieres/arte/monumentos/burgos/yacimiento_de_atapuerca.html

This one was demolished to give a much cleaner view to the facade of the Cathedral. Currently the Episcopal Palace occupies a place close to what used to be the Palacio del Alcázar. https://www.murciaturistica.es/en/monument?ficha=329