资讯

Smithsonian Magazine11 年
These Maps Reveal How Slavery Expanded Across the United States - Smithsonian Magazine
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 ...
The New York Times6 年
A Map of Every Building in America - The New York Times
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.
TreeHugger9月
Every U.S. River on a Beautiful Interactive Map - Treehugger
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.
The Washington Post11 年
The United States of sales tax, in one 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.
The New York Times10 年
A Giant Picture of Snow Across the United States
A Giant Picture of Snow Across the United States By TIM WALLACE MARCH 5, 2015 These composite satellite images compare the snow cover in February of 2013, 2014 and 2015.
csis.org20 年
Chinese Images of the United States - CSIS
"Chinese Images of the United States is both a panorama and a close-up of how China perceives the United States and a great help to better understand the past, present, and future of Sino-U.S.