Passengers from three West African countries will face screening for Ebola symptoms when they arrive at John F. Kennedy International Airport in New York. Travelers are seen here at a JFK checkpoint earlier this week. Four other airports will begin screening next week. JUSTIN LANE/EPA /LANDOV hide caption

itoggle caption JUSTIN LANE/EPA /LANDOV

The Butterfly Garden in Terminal 3 is just one of the pleasant diversions at the Changi airport in Singapore. Wong Maye-E/AP hide caption

itoggle caption Wong Maye-E/AP