It's an age old question: What's the easiest way to board a plane? In this 1933 picture, passengers wait to board a new passenger service between London and Paris. Davies/Getty Images hide caption

The Two-Way
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Wednesday
Tuesday
An Indian Muslim woman poses showing her hands decorated with mehendi (henna) during 'Chand Raat' or 'Night of the Moon' in Hyderabad on August 30, 2011, traditionally held on the eve of the festival of Eid al-Fitr. NOAH SEELAM/AFP/Getty Images hide caption
Once a body is placed inside, the tank is filled with water and lye, pressurized and heated. Edwards Funeral Home/AP hide caption
In New York City last September, Aliza Fatima of Queens took part in the American Muslim Day Parade. Spencer Platt/Getty Images hide caption
Monday
Warren Jeffs arrives at the Tom Green County Courthouse in San Angelo, Texas, on July 29, 2011. Tony Gutierrez/AP hide caption
Ai Weiwei in October 2009. Miguel Villagran/Getty Images hide caption
Yvonne, a cow that has lived in the wild since eluding a trip to the slaughterhouse in May, has foiled all attempts to capture her. Now officials say that she's not to be disturbed. Josef Enzinger/dapd hide caption
The International Space Station and the docked space shuttle Endeavour, flying at an altitude of approximately 220 miles, on May 23, 2011. Paolo Nespoli/NASA hide caption
Safe journey, little guy: Happy Feet in his container aboard the research vessel Tangaroa earlier today. Hagen Hopkins/Getty Images hide caption
Beyonce during her performace Sunday. Kevin Winter/Getty Images hide caption
Friday
A Boeing 787 Dreamliner arrives at Tokyo's Haneda airport as fire engines spray it with water during a test flight. Yoshikazu Tsuno/AFP/Getty Images hide caption
An unidentified man carries an umbrella as he walks in the rain past Saks Fifth Avenue in New York City in September 1985. The windows of Saks had been taped up as the city braces for the arrival of Hurricane Gloria. Richard Drew/AP hide caption
Thursday
On Wednesday, opposition fighters looked through an album they found inside Moammar Gadhafi's compound in Tripoli. It includes photos of former Secretary of State Condoleezza Rice. Sergey Ponomarev/AP hide caption
Wednesday
The National Zoo's 23-year-old male red-ruffed lemur, Joven. Mehgan Murphy/Smithsonian Institution hide caption