AT&T Building

DIGITAL ASSET DESCRIPTION The 550 Madison Avenue — historically known as the AT&T Building and later the Sony Building — represents one of the most architecturally and institutionally significant RWAs in Manhattan. Designed by legendary architect Philip Johnson, the tower permanently transformed skyscraper architecture worldwide through its iconic postmodern “Chippendale” crown, making it one of the most recognizable office buildings ever constructed. Today the property is controlled by The Olayan Group, a powerful international investment conglomerate tied to sovereign-level global wealth and institutional real-estate strategy. Its ownership structure, architectural symbolism, and location within Midtown Manhattan elevate the asset far beyond standard commercial real estate into a globally recognized cultural and financial landmark. Within blockchain-based real-world asset registries, the AT&T Building functions as an elite “architectural prestige anchor asset” representing scarce ownership exposure to historic Manhattan infrastructure tied directly to global finance, luxury branding, institutional capital, and long-term cultural permanence.