Cadillac Ranch in Texas celebrates its 50th anniversary this summer, marking half a century as one of America’s most beloved and quirky roadside attractions. Olivia Palamountain reports
Since its inception during the summer solstice of 1974, Cadillac Ranch has remained a symbol of artistic expression and an increasingly popular tourist destination.
Located along the historic Route 66, the installation features ten vintage Cadillacs partially buried nose-first in the ground, their tail fins pointing skyward at an angle said to mirror that of the Great Pyramids of Giza.
Created by the avant-garde art collective Ant Farm, consisting of Chip Lord, Hudson Marquez, and Doug Michels, Cadillac Ranch has evolved from a bold artistic statement into a cultural phenomenon. 
This installation is now Amarillo’s top tourist destination, drawing over 1.4 million visitors annually.
One of the most alluring things about Cadillac Ranch is that Ant Farm artists have encouraged public interaction with the cars, with legions eager to leave their mark with a spray can and become part of its continually evolving artistry.
As reported by Wikipedia, writing graffiti on or otherwise spray-painting the vehicles is now encouraged, and the vehicles, which have long since lost their original colours, are wildly decorated. 
The installation’s journey has been meticulously documented by photographer Wyatt McSpadden since its inception.
His work, along with video pieces and ephemera from Ant Farm member Chip Lord, will feature in a special exhibition at Amarillo Museum of Art, celebrating the 50th anniversary of Cadillac Ranch.
Further events are also planned throughout the year to honour this unique intersection of art, automobile culture and the American spirit.