A mouse-shaped hot air balloon is seen during a balloon festival in Cappadocia, Turkey, on July 4, 2019. The Cappadocia region is visited by millions of local and foreign tourists every year, many opting to take balloon flights over the stunning landscape during their trip. (Xinhua/Qin Yanyang)

Visitors take selfies during a balloon festival in Cappadocia, Turkey, on July 4, 2019. The Cappadocia region is visited by millions of local and foreign tourists every year, many opting to take balloon flights over the stunning landscape during their trip. (Xinhua/Mustafa Kaya)

People inflate a hot air balloon during a balloon festival in Cappadocia, Turkey, on July 4, 2019. The Cappadocia region is visited by millions of local and foreign tourists every year, many opting to take balloon flights over the stunning landscape during their trip. (Xinhua/Mustafa Kaya)

A robot-shaped hot air balloon is seen during a balloon festival in Cappadocia, Turkey, on July 4, 2019. The Cappadocia region is visited by millions of local and foreign tourists every year, many opting to take balloon flights over the stunning landscape during their trip. (Xinhua/Qin Yanyang)

Hot air balloons are seen during a balloon festival in Cappadocia, Turkey, on July 4, 2019. The Cappadocia region is visited by millions of local and foreign tourists every year, many opting to take balloon flights over the stunning landscape during their trip. (Xinhua/Qin Yanyang)

A hot air balloon is seen during a balloon festival in Cappadocia, Turkey, on July 4, 2019. The Cappadocia region is visited by millions of local and foreign tourists every year, many opting to take balloon flights over the stunning landscape during their trip. (Xinhua/Qin Yanyang)

People visit a balloon festival in Cappadocia, Turkey, on July 4, 2019. The Cappadocia region is visited by millions of local and foreign tourists every year, many opting to take balloon flights over the stunning landscape during their trip. (Xinhua/Qin Yanyang)

People visit a balloon festival in Cappadocia, Turkey, on July 4, 2019. The Cappadocia region is visited by millions of local and foreign tourists every year, many opting to take balloon flights over the stunning landscape during their trip. (Xinhua/Qin Yanyang)