Visitors dressed in Tibetan attire walk in front of the Potala Palace on June 4. (Photos: Palden Nyima/chinadaily.com.cn)

Two tourists pose for a photo in front of the Potala Palace.

A summer view of the park in front of the Potala Palace.

A summer view of Dzongyab Lukhang Park behind the Potala Palace.

Tourists pose for a photo in front of the Potala Palace.

Tourists bow at the Potala Palace.