This example displays a map of the United States with Alaska, Hawaii, and Puerto Rico repositioned and rescaled to reflect their accurate land areas. The custom `albersUsaPr` projection combines multiple conic equal-area projections for each region, using D3 v4's `d3.geoPath` to render state boundaries from TopoJSON. The modified projection, based on Mike Bostock's AlbersUSA, includes Puerto Rico and uses clip extents to separate regions while preserving relative size.