Many American cities were planned on paper before builders laid out their streets. Their maps show mile after mile of perpendicular intersections. Rivers, hills, and older neighborhoods interrupt that order, and those breaks give each grid its character.
A river bends the streets, or a hill forces them onto a diagonal. A century-old neighborhood may follow property lines that predate the master plan. At 24 by 36 inches, these changes become the details that hold your attention.
New York: the grid that made grids famous
New York's 1811 Commissioners' Plan imposed a rigid grid on Manhattan from Houston Street to 155th. Later American planners borrowed heavily from it. Manhattan's older streets and diagonal routes keep that grid from becoming uniform.
Below Houston, streets such as Bleecker, MacDougal, and Mott predate the plan. They are crooked, narrow, and named instead of numbered, remnants of a Dutch colonial village. Broadway, the oldest road on the island, cuts diagonally from Bowling Green to the Bronx. Its intersections with the grid create Madison Square, Herald Square, Times Square, and Columbus Circle.
Zoom out to include all five boroughs. Brooklyn's grid is rotated about thirty degrees from Manhattan's, Queens has several grids that meet at odd angles, and the Bronx follows the Harlem River. Bridges link those competing geometries. On Noir or Dracula, they become some of the thinnest lines on the poster.
Chicago: the broadest shoulders
Chicago's grid is more generous than New York's. Blocks are wider, streets are broader, and the overall pattern spreads across the flat prairie beneath it. State Street and Madison Street divide the city into quadrants, and the numbered grid extends outward with military precision.
The Chicago River forks into North and South branches before reaching the lake. It cuts diagonally across the grid and creates triangular blocks, some filled by the city's best-known buildings. On a map, the river looks like a bolt through an otherwise regular pattern.
Lake Michigan provides the eastern boundary, a straight edge that drops into empty negative space. On Blueprint, Chicago looks like an engineer's opus. On Arctic, the lake and river glow against the grid like water features on an architect's model.
San Francisco: the grid that climbs
San Francisco kept its grid despite steep terrain. Streets that look straight from above climb grades of up to 30 degrees. The parallel Avenues running west toward the Pacific create a steady rhythm on a poster.
The grid rotates at Market Street. Streets south of Market don't align with those to the north, leaving a diagonal seam across the city. Golden Gate Park interrupts the Avenues with a large rectangle of green, while the Presidio replaces the grid in the northwest corner.
And then there's the peninsula itself: water on three sides, the Golden Gate strait to the north, the Pacific to the west. San Francisco maps have a natural frame built in.
Sunset refers to the city's golden light. Cobalt renders the surrounding water in blue. Keep water layers enabled to preserve the full peninsula.
Boston: the anti-grid
Boston was settled in 1630, and its oldest streets follow cow paths, shorelines, and early property boundaries. From above, they form a tangle around the harbor.
Boston holds detail at every zoom level. Beacon Hill has narrow, curving streets, while the planned Back Bay follows a rigid brownstone grid. Elevated highways curve through downtown near the harbor's edge.
On Vintage Map or Sepia Map, Boston's irregular streets resemble a colonial-era chart. On Noir, the dense branches resemble a nervous system.
New Orleans: the river decides
New Orleans bends around a broad curve in the Mississippi River, which gives the "Crescent City" its name. Streets, blocks, and neighborhoods follow the river instead of a single fixed grid.
The French Quarter's tight colonial grid sits at one end of the crescent. Uptown's streets fan out along the river like ribs from a spine. Lake Pontchartrain creates a second edge to the north, compressing the city into a curved band between lake and river.
Enable water layers to show the land squeezed between two bodies of water and the streets bending with the current.
Warm Beige and Terracotta match the city's warm, weathered character. Midnight Blue against the river and lake creates something moody and gorgeous.
Honorable mentions
Washington DC layers L'Enfant's diagonal avenues over a grid, creating star-shaped intersections that suit Art Deco geometry. Denver's regular grid stops at the Rocky Mountain foothills. Portland's 200-foot-square blocks create a fine-grained texture at any zoom level. Austin's downtown grid bends where it meets the Colorado River and Hill Country terrain.
Our best cities roundup compares road patterns around the world. Use the theme selection guide to choose a palette for one of them.
Create yours to see where your city's grid holds and where it gives way.