The Theme Building is a structure at Los Angeles International Airport (LAX), considered an architectural example of the Space Age design style.

The appearance of the building's signature crossed arches as homogeneous structures is a design illusion, created by topping four steel-reinforced concrete legs extending approximately 15 feet above the ground with hollow stucco-covered steel trusses.

[7] Constructed near the beginning of the Space Age, the building is an example of how aeronautics and pop culture, design and architecture came together in Los Angeles.

[8] The original design for the airport created by Pereira & Luckman in 1959 had all the terminal buildings and parking structures connected to a huge glass dome, which would serve as a central hub for traffic circulation.

[9] The Theme Building was subsequently built to mark the spot intended for the dome structure, as a reminder of the original plan.

[1][12] A $4 million renovation, with retro-futuristic interior and electric lighting designed by Walt Disney Imagineering, was completed before the Encounter Restaurant opened there in 1997.