Balloons are seen during the media preview of the 36th Quickcheck New Jersey Festival of Ballooning in Readington of New Jersey, the United States, July 27, 2018. The three-day festival which kicked off on Friday, features mass inflation and ascension of up to 100 hot air balloons during the weekend, expected to attract 165,000 people. (Photo: Xinhua)

People take a tour inside an inflated balloon during the 36th Quickcheck New Jersey Festival of Ballooning in Readington of New Jersey, the United States, July 27, 2018. The three-day festival which kicked off on Friday, features mass inflation and ascension of up to 100 hot air balloons during the weekend, expected to attract 165,000 people. (Photo: Xinhua)

Balloons are seen during the media preview of the 36th Quickcheck New Jersey Festival of Ballooning in Readington of New Jersey, the United States, July 27, 2018. The three-day festival which kicked off on Friday, features mass inflation and ascension of up to 100 hot air balloons during the weekend, expected to attract 165,000 people. (Photo: Xinhua)

People take a tour inside an inflated balloon during the 36th Quickcheck New Jersey Festival of Ballooning in Readington of New Jersey, the United States, July 27, 2018. The three-day festival which kicked off on Friday, features mass inflation and ascension of up to 100 hot air balloons during the weekend, expected to attract 165,000 people. (Photo: Xinhua)