James Hilton (novelist) the occasional Tibetan monks in saffron robes. The name "Shangri-La" has become a byword for a mythical utopia, a permanently happy land, isolated from the world. After the Doolittle Raid on Tokyo, when the fact that the bombers had flown from an aircraft carrier remained highly classified, U.S. President Franklin D. Roosevelt told the press facetiously that they had taken off from Shangri-La. The Navy subsequently gave that name to an aircraft carrier, and Roosevelt named his Maryland presidential retreat "Shangri-La". (Later, President Dwight D. Eisenhower renamed the retreat Camp David after his grandson, and that name has been used
Dwight D. Eisenhower are part of the Presidential Medal of Appreciation Award Medal Series. The Interstate Highway System is officially known as the "Dwight D. Eisenhower National System of Interstate and Defense Highways" in his honor. It was inspired in part by Eisenhower's own Army experiences in World War II, where he recognized the advantages of the autobahn system in Germany. Commemorative signs reading "Eisenhower Interstate System" and bearing Eisenhower's permanent 5-star rank insignia were introduced in 1993 and now are displayed throughout the Interstate System. Several highways are also named for him, including the Eisenhower Expressway (Interstate 290) near Chicago. the Eisenhower