The Basílica de la Sagrada Família, located in Barcelona, is an unfinished Roman Catholic minor basilica.
Also known as Sagrada Família, the basilica was designed by iconoclastic Spanish Catalan architect Antoni Gaudí.
The cathedral which attracts over 4.5 million visitors a year (most of any site in Spain) is officially recognized as a UNESCO World Heritage Site
Pope Benedict XVI consecrated the church as a minor basilica in 2010
Construction was commenced by Gaudi in the year 1882 and current plans are aimed to complete the building by 2026, a century after the architect's death.
Gaudí planned the church to be 95 meters long and 60 meters wide, with a seating capacity of 13,000.
Below the cathedral is the Museu Gaudi dedicated to the works and life of the famous architect.

A visit to The Royal Palace of Madrid is an adventure to experience the full richness of Spanish history.
The palace remains the official (but not used) residence of the Spanish royal family and is comprised of 135,000 square metres of floor space with an incredible 3,418 rooms.
The Madid Palace with its baroque architecture was the residence of Spanish kings from Charles III to Alfonso XIII.
Originally, Moslem leader Emir Mohamed I (9th century) chose Magerit (Madrid’s Arabic name) as the site for a fortress.
Some noteworthy attractions in the palace include:
Main Staircase: designed by Sabatini with over 70 steps;
Throne Hall: boasting a ceiling painted by Tiepolo;
Hall of Halberdiers: serving as a Guards Room since Charles III;
Gasparini Room: with a beautiful 18th century floral decoration; 
Royal Chemist's: natural medicine cabinets & ceramic pots
Royal Chapel: string instruments made by the legendary Stradivari.

The Caves of Drach are located on the eastern part of the  Spanish island Majorca, near the town of Porto Cristo.
The caves are nearly four kilometers in length and reach a depth of twenty-five meters.
Records of the caves date back to the middle ages and they were further explored in the late 19th century by M.F. Will and E.A Martel. Within the caves is one of the largest underground lakes in the world, Martel Lake.
A tour of the caves takes about an hour and includes a special classical quartet music concert with a cello, harpsicord and two violins; the tour also features a boat ride across indoor Lake Martel.  

Cathedral of Seville formally known as "Catedral de Santa María de la Sede" is the third largest church worldwide after  Rome’s St. Peter's Basilica and London’s St. Paul's Cathedral.

Together with the adjacent Alcázar palace complex and the General Archive of the Indies, it is a recognized UNESCO World Heritage Site

Construction of the cathedral commenced in 1403 and was completed over a hundred years later in 1507.

The cathedral is 127 metres long, 83 meters wide and 43 meters high and was built in a five-aisled cruciform with chapels.

The Alcázar palace built by Seville’s Moorish kings, highlights   Spanish mudéjar architecture and is still used by the Spanish royal family as their Seville base.

Sitting on a hill above the city of Granada, the Alhambra Moorish fortress, is considered to be one of the most significant works of European Islamic architecture.

Named the “Red Castle” for its reddish walls, The Alhambra, features  stunning mosaics,  marble fountains, intricate stone carvings, impressive arches, a mosque and much more.

The fortress dates back to the 9th century, but it was under Nasrid dynasty in the twelfth and thirteenth centuries when the fortress was transformed into a magnificent artistic Islamic edifice.

The Alhambra contains 1,730 meters of walls with thirty towers, all covering an area of over 25 acres.

One building, both a Mosque and a Cathedral, tells the story of Spain’s Moslem and Christian history.
The Mezquita in Cordoba is considered to be one of the outstanding structures of Islamic architecture.
As far back as the the 8th century, Moslem ruler Abd ar-Rahman purchased a Visigothic church and built a new mosque which was later expanded to its current size.
When the Christians captured Cordoba in the year 1236, the Mosque was then used as a cathedral. It was King Carlos I in the 16th century who paved the way for the church officials to take out the center of the Mosque and build a new Capilla Mayor (main alter area) and coro (Choir).
Outside the Mosque-Cathedral is the Patio de los Naranjos, an impressive courtyard with fountains as well as orange, cypress and palm trees.
The Puerta del Perdón archway dates back to the a 14th-century and is adjacent to building’s bell tower.

Just 45 kilometers from the capital Madrid stands the monumental buildings of San Lorenzo de El Escorial.
A holiday retreat for Spanish kings, this sprawling estate was enhanced in 1563 for Philip II to feature a monastery, church, royal palace, mausoleum, library, and museum.
Visitors can stroll in awe thru the 16 courtyards, with buildings and rooms connected by 16 kilometers (!) of corridors.
No matter what one’s religious affiliation, Herrera's 30-meter-high retablo, made of jasper and red marble will be appreciated by all.
The monastery boasts frescoed ceilings by Tibaldi as well as a burial vault of the Spanish kings, the Panteón de los Reyes.
The palace’s Bourbon Suite, used by Charles IV, houses 338 tapestries.
No to be missed is the Picture Gallery with an assorted  collection of paintings by Hieronymus Bosch, Albrecht Dürer, Titian, Tintoretto, Veronese, Velázquez, and El Grec.

Toledo, the previous capital of Spain before Madrid, is abundantly rich in history and culture.
The city is a virtual history of the three major religions, Judaism, Islam and Christianity.
Toledo sits on a hill overlooking the Tagus river and its winding alleyways are ideal to explore the Jewish quarter, Cathedrals and Moorish architecture.
The Primate Cathedral of Saint Mary of Toledo is a must-see Visigothic structure with hundreds of stained glass windows and its famous bell tower, which overlooks Plaza del Ayuntamiento.
Since the 16th century Toldeo has been renowned worldwide for its highly durable steel; this actually made the city the center for sword making; a weapon that has become a tourist favorite to view (and even purchase) when visiting Toldeo.

The outstanding engineering feats of the ancient Roman empire is starkly demonstrated for all to witness today by the incomparable Segovia Aqueduct.

This marvel of a structure was built during the early years of the common era under Emperors Vespasian and Trajan in order to transport water from the Acebeda River to the city.

The aqueduct remains in excellent condition; it begins near the Palace of La Granja, where arches brought the water to the El Caserón tank.

From there, a stonework channel carried it to a second tower; at Plaza de Díaz Sanz, it forms two rows of arches, one on top of the other.

There are 20,400 blocks of stone without any cement or mortar connecting them.

The aqueduct reaches a height of 28.10 meters with a total of 167 arches.

The majestic Pyrenees mountain range, covering nearly 500 kilometers, is the natural barrier separating the northern Spanish regions of Navarre, Aragon and Catalonia from the rest of Europe.
For visitors in the winter season there is an abundance of winter sports such as skiing, sledging and snow shoe hiking.
When touring in the spring and summer one can enjoy the numerous hiking trails and National Parks: Aigüestortes i Estany de Sant Mauriciin Lleida, or Ordesa y Monte Perdido in Huesca; there you can see a myriad of unusual animals such as bearded vultures or grouse.
The Pyrenees is a favorite of rock, mountain and canyon climbers, who relish the famous heights of Aneto, the Maladeta and the Pica d'Estats; these offer amazing views of the whole mountain range.
Rivers such as the Cinca, the Segre and the Gállego feature challenging, exciting, and fun, white water adventures.