City Map Connect lets you place two city maps side by side at the same zoom level. Zoom in on one map, and the other follows — so you can see exactly how Tokyo's sprawl compares to New York's grid, or whether Paris really fits inside London. We currently cover 50 major cities worldwide, with data on area, population, and density.

Pick any two cities using the selectors above, or start with one of the popular comparisons below. You can also drop a pin on each map to measure the straight-line distance between two points.