The vast and spectacular resort opened on June 22, 1928, outside the Mexican city of Tijuana in Baja California, in what is now the Agua Caliente neighborhood.

So, many wealthy Americans and Hollywood celebrities flocked to Agua Caliente, which was just 18 miles south of San Diego International Airport.

[2] Clark Gable, Jean Harlow, Louis B. Mayer, the Marx Brothers, Marlene Dietrich, Bing Crosby, Charlie Chaplin, Gloria Swanson, and the boxer Jack Dempsey were among the regular visitors.

The resort also attracted elites from around the world, including diplomats, royalty, sports stars, politicians, patricians, and nouveau-riche capitalists.

And Bugsy Siegel cited Agua Caliente as his inspiration for building the Flamingo Club, on what would become the Las Vegas Strip.

[5] The great New Zealand bred Australian racehorse Phar Lap won the Agua Caliente Handicap in 1932, earning the richest purse in the world at the time.

"[7] The entire Agua Caliente resort cost approximately $10 million to build, which was a huge sum of money for that era.

It was built by the Agua Caliente Company, which was formed by North American investors Baron H. Long, Wirt G. Bowman and James N. Crofton.