People tour the Alhambra Palace in Granada, Spain, June 17, 2020. The Alhambra Palace in the southern Spanish city of Granada reopened its doors to visitors on Wednesday as the country is slowly returning to normal after the coronavirus pandemic. (Board of the Alhambra and Generalife/Handout via Xinhua)

Photo taken on June 17, 2020 shows a view in the Alhambra Palace in Granada, Spain. The Alhambra Palace in the southern Spanish city of Granada reopened its doors to visitors on Wednesday as the country is slowly returning to normal after the coronavirus pandemic. (Board of the Alhambra and Generalife/Handout via Xinhua)

People tour the Alhambra Palace in Granada, Spain, June 17, 2020. The Alhambra Palace in the southern Spanish city of Granada reopened its doors to visitors on Wednesday as the country is slowly returning to normal after the coronavirus pandemic. (Board of the Alhambra and Generalife/Handout via Xinhua)

People tour the Alhambra Palace in Granada, Spain, June 17, 2020. The Alhambra Palace in the southern Spanish city of Granada reopened its doors to visitors on Wednesday as the country is slowly returning to normal after the coronavirus pandemic. (Board of the Alhambra and Generalife/Handout via Xinhua)