Today, the Empire State Building is one of New York City's most-recognizable landmarks.

But when it was designed nearly a century ago, its most-distinctive feature was intended for something few visitors would ever guess: docking airships.

The skyscraper's iconic spire was originally conceived as a mooring mast where dirigibles could dock hundreds of feet above Manhattan, allowing passengers to step directly into the building from the sky.

The ambitious plan reflected a brief period in the late 1920s and early 1930s when many engineers and planners believed airships could become the future of long-distance travel.

Although the idea never worked in practice, it remains one of the most fascinating "what ifs" in the history of American architecture.

That ambition stands in contrast to today’s broader revival of interest in historic landmarks across New York City.

Buildings such as the Flatiron Building—now being converted into private residences—and Penn Station, which is undergoing a major renovation, are drawing renewed attention as they are repurposed for modern use.

Instead, the abandoned plan for the Empire State Building offers a glimpse into how dramatically expectations for transportation and urban development have changed over the past century.

Why the Empire State Building Was Designed for Airships

The idea behind the spire was bold. The architectural firm Shreve, Lamb and Harmon designed it as a sleek, modern structure that would allow passengers to transfer directly from airships into the building.

According to The Skyscraper Museum, the mooring mast was conceived as "a 200-foot tall, modernistic metal tower, flanked by stylized wings clamped tight to the ribbed shaft and topped with a small octagonal room that was to serve as the embarkation point to transfer onto a trans-Atlantic airship."

In theory, travelers would arrive by airship and disembark hundreds of feet above Midtown Manhattan, stepping straight into the heart of the city.

Why the Plan Failed

The vision proved far more practical on paper than in reality.

Engineers soon discovered that the winds swirling around the top of the skyscraper made docking an airship extraordinarily difficult and potentially dangerous.

A privately owned dirigible reportedly attached to the mast for only a few minutes in 1931 while battling winds of roughly 40 miles per hour.

Beyond this, no airship ever used the structure as a practical passenger terminal, effectively ending the experiment almost as soon as it began.

The Spire Still Changed History

Although its original purpose never materialized, the spire still played a crucial role in defining the Empire State Building’s place in history.

By extending the structure’s height, it helped the building surpass its rival, the Chrysler Building, by around 200 feet, securing its status at the time as the world’s tallest skyscraper in 1931, a title it went on to hold for four decades before the World Trade Center was built.

Over time, the summit found a more practical purpose as an observation area offering sweeping views across New York City.

As The Skyscraper Museum notes: "The views from the rooftop outdoor observation deck and from the 102nd floor room—after the plan for mooring dirigibles was quickly abandoned—were unparalleled."

The building’s summit became not just a vantage point but also a defining symbol, "at once high above the city, but also at its very center."

Do you have an architecture or design-related story to share? Let us know via s.kim@newsweek.com, and your story could be featured by Newsweek.