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.

A view looking down Broadway during the parade procession to celebrate Howard Hughes' completion of his round-the-world flight.

A view looking down Broadway during the parade procession to celebrate Howard Hughes' completion of his round-the-world flight.

A view looking down Broadway during the parade procession to celebrate Howard Hughes' completion of his round-the-world flight.

Typed onto a piece of paper attached to the image: new York Hails Hughes and Companions, New York City --- In the greatest reception since Lindbergh's, Howard Hughes and his four gallant companions paraded up Broadway July 15 almost smothered beneath Manhattan's ticker tape accolade recognizing their record-smashing Round-the-World flight. This picture shows Hughes, center, waving to the cheering thousands. On the left is Grover Whalen, commissioner of the New York 1939 World's Fair and on the right is Al Lodwick, Hughes' flight manager. 7-15-38. Credit Line (ACME)."

Circles formed of rocks and stones are seen outside a brick building at the Lost City site (or Pueblo Grande de Nevada), near Overton, Nevada.