A hot-air balloon flying over Clifton Suspension Bridge, an icon of Bristol, during the Bristol International Balloon Fiesta, Bristol, England, United Kingdom, Europe

A balloon pilot adjusting the burning gas jets that heat air inside the balloon, during the Bristol International Balloon Fiesta, England, United Kingdom, Europe

A hot-air balloon flying over the city of Bristol during the Bristol International Balloon Fiesta, Bristol, England, United Kingdom, Europe

Hot-air balloons flying over the city of Bristol during the Bristol International Balloon Fiesta, Bristol, England, United Kingdom, Europe

A balloon pilot adjusting the burning gas jets that heat air inside the balloon, during the Bristol International Balloon Fiesta, England, United Kingdom, Europe

Hot-air balloons taking off from the festival site of the Bristol International Balloon Fiesta, held annually in August, Bristol, England, United Kingdom, Europe

Hot-air balloons preparing to take off from the festival site during the annual Bristol International Balloon Fiesta, Bristol, England, United Kingdom, Europe