The Federal Aid Highway Act of 1956.
The country of Greece is 480 miles across from east to west. The length of this country is 584 miles.
Chile
The Eisenhower Memorial Tunnel is 1.6 miles long...almost two miles long.
About 2500 miles. It is all the way across the country.
11,013 feet 2.1 miles
Probably a week - more if you are walking across really wild country.
The largest land mammal is the African elephant. No country truly has them as they graze freely across areas thousands of square miles in area.
The average hurricane is 300 miles across. The smallest hurricane recorded was Cyclone Tracy at about 60 miles across, the largest was Typhoon Tip at over 1300 miles across.
Russia - approximately 25 miles across the Bering Strait to the Diomede Islands, Russia, or 50 miles to mainland Russia.
The US tapers from about 3200 miles across in the north to about 2500 miles across in the south.
Kansas is about 417 miles across and 211 miles north to south.
25,000 miles across.