First floor plan of the Boulder City Museum. The floor plan signifies the first stage of development for the museum.

The black and white view of Howard Hughes' Lockheed 14 aircraft performing its final landing on the Round the World flight at Floyd Bennett Airport, New York. Typed onto a piece of paper attached to the image: "Howard Hughes two-motored monoplane is shown here being taken past the administration building at Floyd Bennett Airport after Hughes completed a round the world trip. 7-14-38. (Press Association)."

The black and white, aerial view of Howard Hughes' Lockheed 14 aircraft performing its final landing on the Round the World flight in Floyd Bennett Airport, New York. Typed onto a piece of paper attached to the image: "Flight's End: Floyd Bennett Airport - Howard Hughes' silver monoplane, "World's Fair, 1939," as the skimmed the runway just before landing at 2:37 1/2 p.m., to end a dramatic dash around the world. A minutes later, Hughes and his companions were mobbed by officials. Credit (ACME). 7/14/38."

Wilbur Clark facing camera at round table, center at a formal dinner at the Astor Hotel, New York City, 1958. (credit: Bill Mark, Park Sheraton Hotel, NYC).

Exteriors of the Boulder Dam Service Bureau and Boulder City Theatre covered with snow. Snow-covered automobiles are parked on Arizona Street, and the Boulder Dam Hotel and the Union Bus Terminal can be seen in the distance.

The black and white, aerial view of Howard Hughes' Lockheed 14 aircraft performing its final landing on the Round the World flight at Floyd Bennett Airport, New York. Typed onto a piece of paper attached to the image: "Journey's End for World Fliers! Floyd Bennett Airport, N. Y. ---- The "World's Fair 1939.," Howard Hughes' silver monoplane, shown on the ground just after it landed here, concluding an amazing globe-girdling flight in total elapsed time of 3 days, 19 hours, 10 seconds. A crowd of officials surround the plane. Credit Line (ACME) 7/14/38."