The world of urban planning has seen its share of wild ideas, but few are as mind‑bending as these insane architectural schemes that almost reshaped cities and ancient sites.
Why These Insane Architectural Plans Shocked Experts
10 Demolishing The Whole Of Glasgow
The largest city in Scotland, Glasgow is famous for its Victorian architecture and, admittedly, its lively pub culture. In 1945 the city’s planners released the Bruce Report, which didn’t merely suggest trimming a few slums—it called for wiping the entire city centre off the map. All the historic Victorian blocks, countless houses, and even the Glasgow School of Art would have vanished, replaced by rows of communist‑style concrete towers surrounded by an endless motorway ring.
The proposal wasn’t a prank. By 1947 the plan had received official approval. However, post‑war Britain was cash‑strapped, and the sheer expense of rebuilding Glasgow from scratch proved untenable. The looming cost, coupled with the nation’s recovery after World War II, forced officials to abandon the scheme, though a few concrete monoliths from the era still linger as a reminder of what might have been.
9 Carving Two Highways Through The Heart Of Manhattan
In the 1950s, New York City flirted with a plan that would have sliced right through SoHo, Little Italy and the Lower Manhattan waterfront. Known as LOMEX (the Lower Manhattan Expressway), the 1946 proposal aimed to link the Williamsburg and Manhattan Bridges with the Holland Tunnel, creating a massive highway loop over the East River.
Had it been built, the expressway would have bulldozed 14 city blocks, forced the eviction of nearly 2,000 families and over 800 businesses, and left the remaining residents to endure constant traffic roar beneath a concrete overpass. The project did receive a green light from the Federal Bureau of Public Roads in 1968, but by 1971 public opposition had swelled, prompting Governor Nelson Rockefeller to shelve the scheme indefinitely.
8 Filling In Santa Monica Bay
During the 1960s, Los Angeles officials grew frustrated with traffic snarls on the Pacific Coast Highway. Their solution? Turn the sparkling waters of Santa Monica Bay into a concrete highway corridor. The Santa Monica Bay Causeway would have stretched ten kilometres, built dozens of artificial islands, and required the leveling of nearby mountains to provide fill material.
Cost estimates suggested the project would consume half of the city’s total value, while also destroying vital marine ecosystems, beloved beaches, and one of California’s most iconic vistas. Technical challenges and skyrocketing expenses eventually forced the city to abandon the plan, sparing the bay for future generations.
7 Thomas Willson’s Pyramid Of Death
Imagine a 94‑storey pyramid towering over London, its interior a labyrinth of catacombs holding five million bodies. That was Thomas Willson’s vision for the Pyramid of Death, a monstrous 7‑square‑kilometre structure slated for Primrose Hill in the late‑19th century.
Beyond the architectural absurdity, Willson intended to profit £10 million by selling burial spaces. The sheer weight would have flattened Primrose Hill, erasing a cherished parkland view. The project was ultimately scrapped when planners recognised the irreversible damage it would inflict on the hill and the city’s skyline.
6 Demolishing Manhattan’s Entire West Side
In 1946 real‑estate magnate William Zeckendorf pitched an audacious idea: raze Manhattan’s entire West Side and replace it with a colossal airport dubbed the Hudson River Terminal. Spanning 144 city blocks—roughly the size of Central Park—the airport would have handled as many flights per hour as today’s JFK.
Life magazine ran a feature on the plan, arguing that soaring post‑war air traffic made such a megastructure inevitable. However, the astronomical cost and sheer impracticality led to the project’s abandonment before construction ever began. Zeckendorf later pursued other ambitious projects, but the West Side airport never left the drawing board.
5 Turning London Into One Giant Motorway
During the 1960s, London’s council quietly approved the Ringways project—a network of four concentric motorways meant to funnel traffic into the heart of the capital. The innermost loop, Ringway One, would have carved through Camden, Hackney, Hampstead, Islington, Brixton and Clapham Junction, effectively turning historic neighbourhoods into concrete corridors.
Despite receiving a green light from the Conservative government in 1973, the scheme was halted when the nation’s finances ran dry. The costly, destructive vision was shelved, leaving London’s historic fabric largely intact.
4 John Stuart McCaig’s Scottish Colosseum
In 1896 Scottish entrepreneur John Stuart McCaig dreamed of gifting his hometown of Oban a colossal replica of Rome’s Colosseum. The massive stone tower, perched on a hill overlooking the bay, was intended as a private vanity monument—complete with statues of McCaig and his family, and strictly off‑limits to the public.
When McCaig died in 1902, he left the equivalent of £6 million (today) to finish the project. His sister successfully petitioned a judge to void the will, and the unfinished shell remains a local landmark, a reminder of what might have been a Scottish version of a Roman arena.
3 Demolishing Grand Central Station
Between the mid‑1950s and early 1970s, New York Central Railroad launched a relentless campaign to raze Grand Central Terminal. In 1963 the railroad attempted to plaster a bowling alley over the terminal’s upper levels. After the building earned historic‑landmark status in 1967, owner Stuart Saunders opened bids to demolish the terminal and erect a boxy office tower in its place.
Legal battles ensued, and a judge even ruled that Grand Central should be torn down, threatening the very concept of landmark protection. The tide turned when Jackie Onassis penned a public letter urging the city to preserve the terminal, leading an appellate court to overturn the demolition ruling by a narrow 3‑2 vote.
2 Tearing Down Central London
In the 1960s, London County Council’s Sir William Holford unveiled a bold plan to erase three‑quarters of Piccadilly Circus, along with large swaths of Tottenham Court Road, in a bid to solve traffic congestion. The most audacious proposal targeted Soho, envisioning the demolition of the entire district to make way for towering office blocks and a network of sunken motorways.
These radical ideas never materialised, but they illustrate how close the capital came to losing some of its most iconic streets and historic pubs to concrete monstrosities.
1 Driving A Railway Through The Middle Of Stonehenge
Stonehenge, the ancient stone circle that mystifies scholars worldwide, almost fell victim to Victorian railway ambition. In 1886 the London South West Railway proposed a line that would have cut straight through the Stonehenge Cursus, a prehistoric ditch predating the henge itself.
Although that particular line was rejected, a second proposal a decade later threatened to brush the standing stones. The nearby Avebury henge faced an even graver danger when it was sold for housing in 1872, only to be saved by MP John Lubbock who rallied against the demolition. Had these plans succeeded, both Stonehenge and Avebury would be far poorer cultural treasures today.