Just completed the first segment of a literal around-the-world series of flights: Miami to New York’s JFK; JFK to Moscow; Moscow to Beijing; Beijing to Taipei; Taipei to Los Angeles; Los Angeles to Miami.
Someone recently told me that in the days of Pan Am Airlines, they used to make a big deal of this. I think it’s a wonderful reason to have a party – each leg of the way!
Gary Kebbel's Travel Blog 
Yes, Pan Am had two routes around the world. Flight numbers were: PA1 and PA2. Which took Eastern route or Western route I do not remember.
Happy travel!