Howard Hughes standing with others in Houston, Texas, during a celebration of his around-the-world event.

A view of Howard Hughes attending an informal press conference in Culver City, California, after Hughes left the Senate War Investigating Subcommittee hearing in Washington.

An overhead view of a parade procession celebrating Howard Hughes' completion of his round-the-world flight.

An overhead view of a parade procession celebrating Howard Hughes' completion of his round-the-world flight.

An overhead view of a parade procession celebrating Howard Hughes' completion of his round-the-world flight.

An overhead view of a parade procession celebrating Howard Hughes' completion of his round-the-world flight.

The black and white view of Howard Hughes' Lockheed 14 aircraft being refueled in Fairbanks, Alaska. Typed on a piece of paper attached to the image: "C.850170 Howard Hughes' plane being re-fueled at Fairbanks, Alaska on the last lap of its round the world flight. 7/15/38."