The U.S. Coast Survey map calculated the number of slaves in each county in the United States in 1860. Library of Congress In September of 1861, the U.S. Coast Survey published a large map ...

To that end, here's a handy map from the free market-oriented Tax Foundation on which you can find a combination of the state sales tax rate and the average local rate as of the middle of 2013.

A U.S. EPA report stated that 55% of U.S. rivers are in bad condition. View this beautiful interactive map for inspiration to protect these waterways.

Most of the time, The New York Times asks you to read something. Today we are inviting you, simply, to look. On this page you will find maps showing almost every building in the United States.