They crossed the Pacific and Atlantic Oceans, breaking the distance and speed records for 6,700 miles in an air balloon (It took 46 hrs and reached hair raising speeds of 245mph). Wow!

https://www.guinnessworldrecords.com/world-records/first-pacific-crossing-by-hot-air-balloon/

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More recent records

After Crossing Pacific, Record-Setting Balloonists Land Off Baja Coast
Smashing world records for distance and duration in a gas-filled balloon, two pilots have completed their 6,646-mile journey across the Pacific Ocean.

https://www.google.com/amp/s/relay.nationalgeographic.com/proxy/distribution/public/amp/news/2015/1/150130-balloon-pacific-ocean-helium-gas-japan-new-mexico