Site of day, Great Wall of China

Great Wall of China

Is a series of fortifications made of stone, brick, tamped earth, wood and other materials, generally built along an east-to-west line across the historical northern borders of China in part to protect the Chinese Empire or its prototypical states against intrusions by various nomadic groups or military incursions by various warlike peoples or forces.

Several walls were being built as early as the 7th century BC; these later joined together and made bigger and stronger, are now collectively referred to as the Great Wall. Especially famous is the wall built between 220-206 BC by the first Emperor of China, Qin Shi Huang. Little of that wall remains. Since then, the Great Wall has on and off been rebuilt, maintained, and enhanced; the majority of the existing wall is from the Ming Dynasty.

Site of day, Mada'in Saleh, Saudi Arabia

Madain Salih, Saudi Arabia

Mada'in Saleh, also called Al-Hijr or Hegra, is a pre-Islamic archaeological site located  in the  Al-Ula sector, within the Al Madinah Region of Saudi Arabia. A majority of the vestiges date from the Nabatean kingdom.

The site constitutes the Kingdom's southernmost and largest settlement after Petra, its capital. traces of Lihyanite and  Roman occupation before and after the Nabatean rule, respectively, can also be found. The Qur'an places settlement of the area by the Thamud people ofter Noah but before Moses, which can be  interpreted as the 3rd millennium BC.

Site of day, Eiffel tower, France.

Eiffel Tower

La tour Eiffel(French) is an iron lattice tower located on the Champ de Mars in Paris. It was named after the engineer Gustave Eiffel, whose company designed and built the tower, Erected in 1889 as the entrance arch to the 1889 World´s fair, it was initially criticised by some France´s leading artist and intellectuals for its design, but has become both a global cultural icon of France and one of the most recognizable structures in the world.