Photograph of a rest area at an amusement park with triangular canvas canopies suspended by wires and central poles, arranged at an angle over a paved walk area with seating benches. This photograph was taken during a planning trip for HemisFair '68.

Photograph of a paved walkway leading to a ride entrance area at an amusement park. There are plants and tall trees on either side of the walkway, as well as low walls and trash cans. In the background there is a wooden western-style building with a grass/straw roof with signs directing visitors. This photograph was taken during a planning trip for HemisFair '68.

Photograph of people walking at an amusement park, with a merry-go-round filled with riders in the background. The merry-go-round is covered with a canopy and has horse statues fixed to poles for its riders. This photograph was taken during a planning trip for HemisFair '68.

Photograph of landscaping at an amusement park, including a grassy area with a few small trees and several scattered circular red-brick flower beds, as well as a small pond with a fountain at the center. In the background there are people walking on a sidewalk and others sitting on benches. This photograph was taken during a planning trip for HemisFair '68.

Photograph of an outdoor stage, taken during a planning trip for HemisFair '68. The seating area consists of multiple one-piece concrete benches that are arranged in a a terraced style along a slope. There is a large letter "G" above the stage.

Photograph of a paved sidewalk running through an amusement park area featuring a round brick flower bed. People are visible in the background on another path. This photograph was taken during a planning trip for HemisFair '68.

Photograph of people at the State Fair of Texas, in Dallas, taken during a planning trip for HemisFair '68. In the foreground, a boy is eating cotton candy, and in the background a Ferris wheel and a portion of the Cotton Bowl stadium are visible.

Photograph of people at the State Fair of Texas, in Dallas, taken during a planning trip for HemisFair '68. There are several types of amusement rides visible in the background, including an aerial cable car.

Photograph of people waiting in line at a park to enter an amusement attraction, taken during a planning trip for HemisFair '68.

Photograph of a rest area in a park, filled with plants and shrubs in large planters and benches shaded by canopies. Two people are visible in the background, sitting on one of the benches underneath a canopy. This photograph was taken during a planning trip for HemisFair '68.

Photograph of Skyride drive station shelter at an unidentified amusement park, taken during a planning trip for HemisFair '68. The mechanical drive of the ride and the main area where guests got on and off of the ride are partially visible behind barriers.

Image of an amusement ride waiting area at an amusement park. The waiting area, empty in this photograph, is where people stand in line to wait to board an amusement ride. This waiting area has a fabric canopies suspended atop metal poles to provide shade. A man and a woman facing away from the viewer are standing next to a wooden fence at the perimeter of the waiting area. This photograph was taken during a planning trip for HemisFair '68.

Photograph of the Petting Zoo at Six Flags Over Texas. It was a small zoo that housed various animals that could be fed and petted. Some small farm animals were included. In this photograph there is a white goat and further in the background what looks to be a donkey. The area is covered by a triangular shaped awning. This photograph was taken during a planning trip for HemisFair '68.

Image of Model-San Antonio River with barge of the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio.

Image of Model-San Antonio River with barge of the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio.

Image of a Model-San Antonio River with barge of the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio.

Image of a Model-San Antonio River with barge of the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio.

Image of a Model-San Antonio River with barge of the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio, Texas.

Photograph of Lieutenant Governor Preston Smith viewing land cleared for HemisFair '68. Buildings of downtown San Antonio are visible in the background.

Image of Model-San Antonio River with barge of the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio.

Image of Model-San Antonio River with barge of the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio.

Image of an aerial view of the construction of the Arena and Convention Center for the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio.

Image of an aerial view of the construction site for the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio.

Image of an aerial view of the construction site for the 1968 World's Fair known as HemisFair '68, held from April to October 1968 in San Antonio.