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Edge of a City

The health of the eye seems to demand a horizon. We are never tired so long as we can see far enough.

-Ralph Waldo Emerson

At the fringes of today’s sprawling cities, disconnected fragments emerge—tied only to the loops and curves of freeways, rather than to any cohesive urban fabric. These urban edges form a philosophical territory where city and nature blur, existing in an uneasy coexistence. This transitional zone invites bold visions to redefine the boundary between the urban and the rural, offering a chance to restore degraded land, preserve threatened ecosystems, and reimagine the relationship between landscape and human settlement.

Rather than relying on outdated planning methods, these “Edge of a City” proposals explore new spatial strategies that prioritize the creation of spaces over objects—forming a dynamic urban threshold that mediates between the metropolis and the agrarian plain. Projects within this framework propose integrated living, working, and cultural environments organized around pedestrian networks that foster community. From spatial barriers protecting the desert near Phoenix to towers framing urban views in New York, each scheme operates with a sensitivity to light, movement, material, and psychological space—laying the groundwork for a new synthesis of urban life and form.

SPATIAL RETAINING BARS
Phoenix, Arizona

On the edge of Phoenix, where the ancient Hohokum once thrived with 250 miles of canals, a series of spatial retaining bars mark the boundary between city and desert. These structures frame views of the surrounding landscape while forming loft-like living spaces that hover in isolation, offering vistas of desert sunrises and sunsets. Communal courtyards connect life at ground level, while work and culture unfold in suspended, open-frame spaces. Built from polished, pigmented concrete, the structures glow with reflected desert light, creating a luminous new horizon at the city’s edge.

PARALLAX SKYSCRAPERS
Manhattan Penn Yard, New York

This proposal reimagines the 72nd Street train yards as a new city-edge park extending to the Hudson River, echoing the spirit of Frederick Law Olmsted. The park creates a green threshold between the dense urban fabric to the east and the riverfront, offering expansive views and public access to the water’s edge. Flanking the river, ultrathin skyscrapers define a new kind of urban space—framing the horizon while housing mixed-use programs.

These hybrid towers are connected by horizontal underwater transit systems that link submerged parkside lobbies to high-speed vertical circulation. The site is easily accessible, with pedestrian connections to the 72nd Street subway and express ferries to major destinations like Wall Street, the Javits Center, and LaGuardia Airport. As a counterbalance to the vertical towers, a massive floating public structure serves as a flexible venue for concerts, open-air cinema, and large-scale festivals, anchoring the development with a vibrant civic core.

SPIROID SECTORS
Dallas, Texas

Years
1989–1990
Status
Complete
project team

Steven Holl, Hideaki Ariizumi, Laura Briggs, Steven Cassell, Sarah Dunn, Scott Enge, Tod Fouser, Hal Goldstein, Thomas Jenkinson, Peter Lynch, Jennifer Murray, Chris Otterbein, Adam Yarinsky
cast glass

Christopher Cosma
installation construction

David Dick
exhibition coordinator

Janet Cross
special thanks to

Larry Rouch and Lebbeus Woods
Watercolor Image