The Bristol International Balloon Fiesta is held annually during August in Bristol, England. The event was first held in 1979 and is now one of the largest in Europe. [Photo: Huanqiu]

The Bristol InternationalBalloon Fiesta is held annually during August in Bristol, England. The event was first held in 1979 and is now one of the largest in Europe. [Photo: Huanqiu]

The Bristol InternationalBalloon Fiesta is held annually during August in Bristol, England. The event was first held in 1979 and is now one of the largest in Europe. [Photo: Huanqiu]

The Bristol InternationalBalloon Fiesta is held annually during August in Bristol, England. The event was first held in 1979 and is now one of the largest in Europe. [Photo: Huanqiu]

The Bristol InternationalBalloon Fiesta is held annually during August in Bristol, England. The event was first held in 1979 and is now one of the largest in Europe. [Photo: Huanqiu]

The Bristol InternationalBalloon Fiesta is held annually during August in Bristol, England. The event was first held in 1979 and is now one of the largest in Europe. [Photo: Huanqiu]

The Bristol InternationalBalloon Fiesta is held annually during August in Bristol, England. The event was first held in 1979 and is now one of the largest in Europe. [Photo: Huanqiu]

The Bristol InternationalBalloon Fiesta is held annually during August in Bristol, England. The event was first held in 1979 and is now one of the largest in Europe. [Photo: Huanqiu]

The Bristol InternationalBalloon Fiesta is held annually during August in Bristol, England. The event was first held in 1979 and is now one of the largest in Europe. [Photo: Huanqiu]

The Bristol InternationalBalloon Fiesta is held annually during August in Bristol, England. The event was first held in 1979 and is now one of the largest in Europe. [Photo: Huanqiu]

The Bristol InternationalBalloon Fiesta is held annually during August in Bristol, England. The event was first held in 1979 and is now one of the largest in Europe. [Photo: Huanqiu]

The Bristol InternationalBalloon Fiesta is held annually during August in Bristol, England. The event was first held in 1979 and is now one of the largest in Europe. [Photo: Huanqiu]