Abu Simbel is an archaeological site comprising two massive rock temples in southern Egypt on the western bank of Lake Nasser about 290 km southwest of Aswan. It is part of the UNESCO World Heritage Site known as the "Nubian Monuments", which run from Abu Simbel downriver to Philae (near Aswan).
The twin temples were originally carved out of the mountainside during the reign of PharaohRamesses II in the 13th century BC, as a lasting monument to himself and his queen Nefertari, to commemorate his alleged victory at the Battle of Kadesh, and to intimidate his Nubian neighbors. However, the complex was relocated in its entirety in the 1960s, on an artificial hill made from a domed structure, high above the Aswan dam reservoir.
on the The relocation of the temples was necessary to avoid being submerged during the creation of Lake Nasser, the massive artificial water reservoir formed after the building of the Aswan damNile River. Abu Simbel remains one of Egypt's top tourist attractions.
With the passing of time, the temples became covered by sand. Already in the 6th century BC, the sand covered the statues of the main temple up to their knees. The temple was forgotten until 1813, when Swiss orientalist JL Burckhardt found the top frieze of the main temple. Burckhardt talked about his discovery with Italian explorer Giovanni Belzoni, who travelled to the site, but was unable to dig out an entry to the temple. Belzoni returned in 1817, this time succeeding in his attempt to enter the complex. He took everything valuable and portable with him. Tour guides at the site relate the legend that "Abu Simbel" was a young local boy who guided these early re-discoverers to the site of the buried temple which he had seen from time to time in the shifting sands. Eventually, they named the complex after him: Abu Simbel.
In 1959 an international donations campaign to save the monuments of Nubia began: the southernmost relics of this ancient human civilization were under threat from the rising waters of the Nile that were about to result from the construction of the Aswan High Dam.
The salvage of the Abu Simbel temples began in 1964, and cost some USD $80 million. Between 1964 and 1968, the entire site was cut into large blocks,
dismantled and reassembled in a new location – 65 m higher and 200 m back from the river, in what many consider one of the greatest feats of archaeological engineering. Today, thousands of tourists visit the temples daily. Guarded convoys of buses and cars depart twice a day from Aswan, the nearest city. Many visitors also arrive by plane, at an airfield that was specially constructed for the temple complex.
The complex consists of two temples. The larger one is dedicated to Ra-Harakhty, Ptah and Amun, Egypt's three state deities of the time, and features four large statues of Ramesses II in the facade. The smaller temple is dedicated to the goddess Hathor, personified by Nefertari, Ramesses's most beloved wife (in total, the pharaoh had some 200 wives and concubines).... (more on www.wikipedia.org)
The 
Grand Canyon is a colorful steep-sided 
gorge carved by the Colorado River in the U.S. state of Arizona. It is largely contained within the Grand Canyon National Park — one of the first national parks in the United States. President Theodore Roosevelt was a major proponent of conservation of the Grand Canyon area, and visited on numerous occasions to hunt and enjoy the scenery.
The canyon, created by the Colorado River over 6 million years, is 277 miles (446 km) long, ranges in width from 4 to 18 miles (6.4 to 24 kilometers), and attains a depth of more than a mile (1.6 km). Nearly two billion years of the Earth's history have been exposed as the Colorado River and its tributaries cut their channels through layer after layer of rock while the Colorado Plateau was uplifted.
