Photos Of The Week: October 12 - 18

Every week, we bring you some of the most fascinating photos from around the world.

This week, we've got Jerusalem's Old City, an adorable Afghan girl and stunning images out of Pakistan.

brazil Demonstrators march at a largely peaceful protest by teachers and supporters calling for better public education and services on October 15, 2013 in Rio de Janeiro, Brazil. (Mario Tama/Getty Images)

artarctica A Southern right whale breaches near the shore of Muizenberg Beach in False Bay, Cape Town on October 11, 2013. (JENNIFER BRUCE/AFP/Getty Images)

korea South Korean 'tourist police' officers are sworn in during their inauguration ceremony at Gwanghwamun square in Seoul on October 16, 2013. (JUNG YEON-JE/AFP/Getty Images)

pakistan2 A Pakistani Muslim devotee offers Eid al-Adha prayers at the Badshahi Mosque in Lahore on October 16, 2013. (Arif Ali/AFP/Getty Images)

turtles Olive Ridley sea turtles (Lepidochelys olivacea) arrive to spawn during a nesting at Ixtapilla beach, in Aquila municipality on the Pacific coast of Michoacan State, Mexico, on Octuber 13, 2013. (HECTOR GUERRERO/AFP/Getty Images)

afghanistan An Afghan girl looks on as she holds her doll on the outskirts of Mazar-i-Sharif on October 13, 2013. (FARSHAD USYAN/AFP/Getty Images)

pakistan Pakistani Muslim women offer Eid al-Adha prayers at the Badshahi Mosque in Lahore on October 16, 2013. (Arif Ali/AFP/Getty Images)

ap Palestinian Muslim worshippers sit on a wall in front of the golden dome inside the Al-Aqsa Mosque compound, Islam's third holiest shrine, in Jerusalem's Old City following morning prayers on the Muslim holiday of Eid al-Adha or 'The Feast of Sacrifice' on October 15, 2013. (AHMAD GHARABLI/AFP/Getty Images)

iran A child takes part in a march of Mapuche indigenous people protesting in downtown Santiago, on October 12, 2013, during the commemorations for Columbus Day. AFP PHOTO/Hector RETAMAL (Photo credit should read HECTOR RETAMAL/AFP/Getty Images)

iran Switzerland Iran Nuclear Politics (EU High Representative for Foreign Affairs Catherine Ashton, left, gestures next to Iranian Foreign Minister Mohammad Javad Zarif, right, during a photo op prior to the start of two days of closed-door nuclear talks Tuesday, October 15, 2013, at the United Nations offices in Geneva, Switzerland. (AP Photo/Fabrice Coffrini, pool)