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. (Photos: Xinhua)

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.

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.

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.

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.

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.

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.

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.

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.

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.

A visitor takes photos of 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.

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.

People inflate a hot air balloon during a balloon festival in Cappadocia, Turkey, on July 3, 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.