Sears Tower's Ledge, Canada Day, baby loggerhead

Lady Alice Douglas swims in Llyn Mymbyr at sunset in the shadow of the Snowdon Horseshoe in North Wales on Tuesday in Capel Curig, United Kingdom. Swimming in wild rivers and lakes is gaining in popularity across Britain with maps and books detailing the locations of the wildest outdoor swims. (Photo by Christopher Furlong/Getty Images)

Brig. Gen. Stuart Morris Dyer (3rd R); Tommy T. Thomas (2nd R), Deputy Undersecretary of Defense for Military Community and Family Policy; and Col. David Hafer (R) salute as a U.S. Army carry team transfers the remains of U.S. Army Sgt. Juan C. Baldeosingh from a C-17 at Dover Air Force Base on Wednesday in Dover, Del. Baldeosingh, from Carteret, N.C., died in combat in Iraq. (Photo by Win McNamee/Getty Images)

A baby loggerhead sea turtle is held by a member of the Broward County Sea Turtle Conservation Program on Wednesday in Lauderdale-by-the-Sea. The Lauderdale-by-the-Sea Fire Department helped the sea turtle program remove 50 of the babies who had fallen into a storm drain, attracted by the lights of a nearby parking structure. The Florida Atlantic Coast is in the height of the Sea Turtle hatching and nesting season. (AP Photo/ Sun Sentinel, Joe Cavaretta)

The Snowbirds aerobatic team fly past the Peace Tower during Canada Day celebrations on Parliament Hill in Ottawa on Wednesday. (AP Photo/The Canadian Press, Sean Kilpatrick)

Lin Hui, a 7-year old giant panda, plays with her 5-week old cub at the Chiang Mai zoo in the northern city of Chiang Mai, Thailand, on Wednesday. (AP Photo/Wichai Taprieu)

Five -year-old Anna Kane (top) and 4-year-old Sophie Allaway check out the view from the Ledge, a new glass cube that juts out from the 103rd floor Skydeck of the Sears Tower, during a media preview on Wednesday in Chicago. The 1,353 foot high observatory recently opened to the public. (Photo by Scott Olson/Getty Images)

Visitors check out the view from the Ledge, a new glass cube that juts out from the 103rd floor Skydeck of the Sears Tower in Chicago. (Photo by Scott Olson/Getty Images)

Rescuers float down a river on tire tubs as they search for survivors of two sunken boats, in Lal Pur district of Nangarhar province east of Kabul, Afghanistan on Wednesday. Several Afghans were killed when two boats sank while attempting to transfer groups of people from one side of the river to the other, police officials said. (AP Photo/Rahmat Gul)

A vehicle is recovered from the Detroit River in Detroit on Wednesday. A police dive team worked to remove 15 vehicles from their watery graveyard where they were spotted last month while members of the department's Underwater Recovery Team were involved in a separate investigation. (AP Photo/Carlos Osorio)

Supporters of ousted President Manuel Zelaya donate money for their cause during a protest near the presidential residence in Tegucigalpa on Wednesday. Honduras' interim leader, Roberto Micheletti, warned that the only way ousted President Zelaya will return to office is through a foreign invasion but a potential showdown was postponed when Zelaya delayed his plans to return to Honduras. (AP Photo/Esteban Felix)

Tribal youths scramble along the face of Willamette Falls in Washington state on Tuesday, renewing the tradition of catching lampreys clinging to the face of the falls. (AP Photo/The Columbian, Erik Robinson)

Belarus helicopter gunships fly over Minsk, the capital, as they prepare for a military air show ahead of the Independence Day military parade on Wednesday. A parade will take place on Friday. (AP Photo/Sergei Grits)

Two Palestinians wearing masks representing Palestinian President Mahmoud Abbas, left, and head of Gaza's Hamas government Ismail Haniyeh, raise their hands as they stand together during a demonstration calling for Palestinian unity, in Gaza City on Wednesday. Palestinians said Tuesday the rival Hamas and Fatah movements ended their latest round of reconciliation talks in Cairo without reaching a deal. (AP Photo/Khalil Hamra)

Thousands of prodemocracy protesters march to the government office during the 12th anniversary of the Hong Kong handover to China in Hong Kong on Wednesday. Since its handover to China on July 1, 1997, after 156 years of British rule, Hong Kong has largely retained its Western-style civil liberties. But its people still cannot directly elect the city's chief executive or all legislative members. The annual march has become a public forum to urge for democratic forms and vent dissatisfaction with government policies. (AP Photo/Kin Cheung)

National Security Guard commandos march during the inauguration of the NSG regional hub in Hyderabad, India, Wednesday. Following last year's attacks in Mumbai, four NSG regional hubs have been set up in Mumbai, Calcutta, Chennai and Hyderabad to quickly and effectively respond to terror attacks. (AP Photo/Mahesh Kumar A.)