Valentino Castle (Castello del Valentino), Turin, Italy

Public Domain Photo: Castle of Valentino (Castello del Valentino), in the Valentino Park, Turin, Italy

The Castle of Valentino (Castello del Valentino), a UNESCO World Heritage Site in Valentino Park in the north-west Italian city of Turin, is the seat of the Architecture Faculty of the Polytechnic University of Turin.

The Valentino Castle is believed to derive its name from Saint Valentine whose relics were venerated in a church nearby. The castle has a horseshoe shape with four round towers at each angle, and a wide inner court with a marble pavement.

Moai at the hillside in Rano Raraku, Easter Island

Moai are huge monolithic human figures carved from rock on the Polynesian island of Easter Island, Chile. These sculptures are believed to be carved between 1250 AD and 1500 AD. Nearly moai half are still at Rano Raraku, the main moai quarry, but hundreds of such rock sculptures were transported and set on stone platforms around the island's perimeter. Moai have very large heads measuring three-fifths of their bodies. The moai are the faces of deified ancestors. The statues still gazed inland across their clan lands when Europeans first reached the island, but most moai were cast down during later conflicts between clans.

The statues' production and transportation is considered a remarkable creative, intellectual and physical feat. The tallest moai Paro was about 10 meters high and weighed 75 tons, and the heaviest erected moai was a shorter, squatter moai at Ahu Tongariki weighing 86 tons.

Rano Raraku, located on the lower slopes of Terevaka in the Rapa Nui National Park on Easter Island, is a volcanic crater. It was a quarry for about 500 years until the early eighteenth century, and supplied the stone from which about 95 per cent of the island's rock sculptures (moai) were carved. Rano Raraku, where 397 moai still remain, is a visual record of moai design vocabulary and technological innovation. Rano Raraku is in the World Heritage Site of Rapa Nui National Park and gives its name to one of the seven sections of the park.

Machu Picchu: The Lost City of the Incas

On July 24, 1911, Machu Picchu was brought to the attention of the world by American historian Hiram Bingham, a lecturer at Yale University. He undertook archaeological studies and completed a survey of the area and coined the name ‘The Lost City of the Incas’, which was the title of his first book.

Bingham was searching for the city of Vilcapampa, the last Inca refuge and spot of resistance during the Spanish conquest of Peru. After years of explorations around the zone, he was led to the citadel by Quechuas, the people who were living in Machu Picchu in the original Inca infrastructure. Bingham made several more trips and conducted excavations on the site through 1915.

Machu Picchu was declared a ‘Historical Sanctuary’ of Peru in 1971. It was designated as a World Heritage Site in 1983, describing it as "an absolute masterpiece of architecture and a unique testimony to the Inca civilization".

On July 7, 2007, Machu Picchu was voted as one of the New Seven Wonders of the World. The World Monuments Fund placed Machu Picchu on its 2008 Watch List of the 100 Most Endangered Sites in the world because of environmental degradation.

In January 2010 heavy rain caused flooding which damaged roads and railways leading to Machu Picchu trapping over 2,000 tourists and 2,000 locals. So Machu Picchu was temporarily closed.

On April 1, 2010 Machu Picchu has formally reopened. It is estimated that Peru had lost some $200m in revenue because of the closure, according to Peru's tourism minister. About 90% of Peru's tourist revenue comes from the Cuzco region, where Machu Picchu is situated.

New Seven Wonders of the World: Petra

Petra, a historic and archaeological city in Jordanian that has rock cut architecture and water conduits system, established around the 6th century BC as the capital city of the Nabataeans, is a symbol of Jordan. It is the most visited tourism attraction in Jordan, on the slope of Mount Hor in a basin among the mountains which form the eastern flank of Arabah (Wadi Araba), a valley extending from Dead Sea to the Gulf of Aqaba. Petra is a World Heritage Site since 1985, and it was chosen as one of the New Seven Wonders of the World in 2007.

Temple of the Sun at Machu Picchu

The Intihuatana, the Temple of the Sun and the Room of the Three Windows dedicated to Inti, the Inca people’s sun god and their greatest deity at Machu Picchu, a pre-Columbian Inca site located 2,430 meters (7,970 ft) above sea level situated on a mountain ridge above the Urubamba Valley in Peru.

The Holy Monastery of Varlaam

The Holy Monastery of Varlaam is the second largest monastery in the Metéora complex. A church dedicated to All Saints is in the Athonite type (cross-in-square with dome and choirs) with spacious esonarthex (lite) surrounded by a dome. It was built in 1541/42 and decorated in 1548, while the esonarthex was decorated in 1566. The old refectory is used as a museum while at north of the church there is the parekklesion of the Three Bishops built in 1627 and decorated in 1637.

The Varlaam Monastery was built by Saint Nectarios of Aegina and Theophanes. Access to the monastery was originally difficult, and it was deliberately built so, requiring either long ladders put together or large nets used to haul up both goods and people. Climbing up required quite a leap of faith; the ropes were replaced, so the story goes, only when the Lord let them break. In the words of UNESCO, "The net in which intrepid pilgrims were hoisted up vertically alongside the 373 meters (1,220 ft) cliff where the Varlaam monastery dominates the valley symbolizes the fragility of a traditional way of life that is threatened with extinction."

Meteora Complex of Greek Orthodox Monasteries

Meteora is one of the largest and most important complexes of Eastern Orthodox monasteries in Greece, second to Mount Athos. The now-existing six monasteries were built on natural sandstone rock pillars, at the northwestern edge of the Plain of Thessaly near the Pineios River and Pindus Mountains in central Greece. The nearest town is Kalambaka. The Metéora is included on the UNESCO World Heritage List.

The exact date of the establishment of the monasteries is unknown. It is believed, in the 9th century, an ascetic group of hermit monks moved up to the ancient pinnacles. They were the first people to inhabit Meteora. They lived in the hollows and fissures in the rock towers, as high as 1800 feet (550 meters) above the plains.

By the end of the 14th century, the Byzantine Empire's reign over northern Greece was being threatened by Turkish invaders who wanted control over the fertile plain of Thessaly. The hermit monks, seeking a retreat from the expanding Turkish occupation, found the inaccessible rock pillars of Meteora to be an ideal refuge and built more than 20 monasteries, out of which only six exist today; five are inhabited by men, one by women, with fewer than 10 inhabitants in each.

The six monasteries are The Holy Monastery of Great Meteoron (the largest of the monasteries at Metéora), The Holy Monastery of Varlaam (the second largest), The Holy Monastery of Rousanou/St. Barbara, The Holy Monastery of St. Nicholas Anapausas, The Holy Monastery of St. Stephen, and The Monastery of Holy Trinity.

In the 1920s there was an improvement in the arrangements. Steps were cut into the rock, making the complex accessible via a bridge from the nearby plateau. During World War II the site was bombed and many art treasures were stolen.

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