Frank Lloyd Wright designed more than a thousand works in his lifetime, but hundreds of his ideas were never built. One of those was the Gordon Strong Automobile Objective, a tourist attraction commissioned in 1924. Now, thanks to new renderings by Spanish architect David Romero, you can get a better idea of what the proposed project might have looked like had it been completed, as Curbed reports.

Romero is the creator of Hooked on the Past, a project in which he translates plans for Frank Lloyd Wright's unbuilt designs into photorealistic scale renderings. He imports data and plans Wright drew up for the projects into modern modeling software in order to create the most accurate renderings possible of what these structures would have looked like. For the Gordon Strong Automobile Objective images, he collaborated with the Frank Lloyd Wright Foundation, which recently ran the images in its magazine, Frank Lloyd Wright Quarterly.

David Romero

Intended to stand atop Sugarloaf Mountain in Maryland’s Blue Ridge Mountains, the plan for the Gordon Strong Automobile Objective called for a planetarium and restaurant to accompany a scenic overlook. Its developer, wealthy Chicago businessman Gordon Strong, envisioned it as a destination where families would drive for the day from Baltimore and Washington, D.C. The design shifted substantially from draft to draft. In some, it called for a dance hall instead of a planetarium; in another, a theater. He also designed in waterfalls, pedestrian paths, bridges, an aquarium, and a car showroom.

The unbuilt Butterfly Wing BridgeDavid Romero

Above all, it was to be a destination for drivers, as the name suggests, and visitors would have driven up to park along its spiral structure—similar to the one that would later come to life in the design of the Guggenheim museum, which Romero looked to as inspiration while translating Wright's failed plans into 3D renderings.

David Romero

Romero also painstakingly researched the context and location of the building, including adding era-appropriate cars, traces of rain and dirt on the building, and other details in order to bring the project to life. As a result, at times it can be hard to tell these are illustrations rather than stylized photographs.

Romero has also created similarly detailed renderings of other unbuilt or demolished Frank Lloyd Wright projects, including ones that have long since been destroyed, like the demolished Larkin Administration Building in Buffalo, New York and the burned-down Rose Pauson House in Arizona. You can see more here.

[h/t Curbed]