Photo taken on May 23, 2018 shows the light show during Ramadan on Burj Khalifa, the world's tallest building, in Dubai, the United Arab Emirates. (Xinhua/Mahmoud Khaled)

Photo taken on May 23, 2018 shows the light show during Ramadan on Burj Khalifa, the world's tallest building, in Dubai, the United Arab Emirates. (Xinhua/Mahmoud Khaled)

Photo taken on May 23, 2018 shows the light show during Ramadan on Burj Khalifa, the world's tallest building, in Dubai, the United Arab Emirates. (Xinhua/Mahmoud Khaled)

Photo taken on May 23, 2018 shows the light show during Ramadan on Burj Khalifa, the world's tallest building, in Dubai, the United Arab Emirates. (Xinhua/Mahmoud Khaled)

Photo taken on May 23, 2018 shows the light show during Ramadan on Burj Khalifa, the world's tallest building, in Dubai, the United Arab Emirates. (Xinhua/Mahmoud Khaled)

Photo taken on May 23, 2018 shows the light show during Ramadan on Burj Khalifa, the world's tallest building, in Dubai, the United Arab Emirates. (Xinhua/Mahmoud Khaled)

Photo taken on May 23, 2018 shows the light show during Ramadan on Burj Khalifa, the world's tallest building, in Dubai, the United Arab Emirates. (Xinhua/Mahmoud Khaled)

Photo taken on May 23, 2018 shows the light show during Ramadan on Burj Khalifa, the world's tallest building, in Dubai, the United Arab Emirates. (Xinhua/Mahmoud Khaled)

Photo taken on May 23, 2018 shows the light show during Ramadan on Burj Khalifa, the world's tallest building, in Dubai, the United Arab Emirates. (Xinhua/Mahmoud Khaled)

Photo taken on May 23, 2018 shows the light show during Ramadan on Burj Khalifa, the world's tallest building, in Dubai, the United Arab Emirates. (Xinhua/Mahmoud Khaled)