A citizen rides in smog on December 20, 2016 in Jinan, Shandong Province of China. Air quality index (AQI) readings exceeded 400 and some schools have suspended classes in Jinan. (Photo by VCG/VCG via Getty Images)

A general view of the residential area is pictured during dusk at Jodhpur in Rajasthan, April 5, 2015. Jodhpur, also known as the blue city in the desert Indian state of Rajasthan, which residents say originally, was used to show where the highest caste of priestly Hindus live, who wanted to set them apart from the rest of the population. Later the rest of the population followed suit. Another reason for the city to be blue is to keep the buildings cool during the summers, local residents said. (Photo by Adnan Abidi/Reuters)

A woman waters the plants outside her house in an alley at a slum in Mumbai October 28, 2014. (Photo by Danish Siddiqui/Reuters)

Model Irina Shayk and Arthur Sales present the new collection “Xti 2011-12” on March 14, 2011 in Madrid, Spain. (Photo by Carlos Alvarez/Getty Images)

iPhone 4 hard case cover with portrait of Steve Jobs are on sale on October 9, 2011 in Shenzhen, Guangdong Province of China. Apple co-founder Jobs died on October 5, 2011 at the age of 56. (Photo by ChinaFotoPress/Getty Images)

Ronda is a small Spanish town that it well known by many people around the world. It became a popular tourist destination due to its peculiar location. Some of its buildings are standing right next to the large cliff drop, making for a very scary sight, especially if you were to look down through one of their windows unaware of what kind of sight awaits you. If you ever find yourself looking for this ancient town, you can travel to it from Costa del Sol or Malaga. In the past, this town played a major strategic role due to its high elevation, which made defending it from invaders a lot easier.

An Israeli policeman prevents a Palestinian man from entering the compound which houses al-Aqsa mosque, known by Muslims as the Noble Sanctuary and by Jews as the Temple Mount, in Jerusalem's Old City September 28, 2015. (Photo by Ammar Awad/Reuters)