David Barber, Queen Elizaberth's swan marker, holds a swan during the annual Swan Upping ceremony on England's River Thames between Shepperton and Windsor on Monday. Swans and cygnets are counted and examined during the ceremony. The five-day census of the swan population dates back to the 12th century when the crown claimed ownership of all mute swans. Today, the crown retains the right to ownership of all unmarked mute swans in open water, but the queen only exercises her ownership on certain stretches of the River Thames and its surrounding tributaries. Luke MacGregor/Reuters
Visitors dressed up as 'DC Comics,' Hourman, Atom, and Flash (l. to r.) walk through San Diego, Calif., during the 40th annual Comic Con Convention in July 2009. The 41st annual Comic Con will start Thursday, running from July 22-25, 2010. Mario Anzuoni/Reuters/FILE
A pack of riders pass through the Mas d'Azil cave during the 15th stage of the Tour de France from Pamiers to Bagnerers du Luchon, France, on Monday. Eric Gaillard/Reuters
A boy plays on a replica of the Eiffel Tower at Los Dolores Square in Tegucigalpa, Honduras, on Sunday. The French Embassy in Honduras donated the 20-foot replica to the city of Tegucigalpa to celebrate the friendship between the two nations. The replica was the first in Latin America and the 18th in the world, according to embassy officials. Edgard Garrido/Reuters
A small fish swims near a jellyfish in the sea near the beach in the village of Toroni, northern Greece, on Monday. Darko Vojinovic/AP
US Army soldiers with the 1-320 Field Artillery Regiment, 101st Airborne Division, take a break after receiving incoming fire from suspected Taliban militants at Combat Outpost Nolan in the Arghandab Valley north of Kandahar, Afghanistan, on Monday. Bob Strong/Reuters
A herd of two-humped camels walks at the Bayan-kol Valley in Russia's Tuva region on Monday. The government of Russia's Tuva region, close to the border with Mongolia, has launched a plan to boost the number of camels on local farms and hopes to increase the region's income through sales of camel hair. Ilya Naymushin/Reuters
Former Sen. George McGovern jumps from 18,000 feet in tandem with senior jump master Cristoper Parente at the Skydive Space Center in Titusville, Fla., on Monday. McGovern made the jump in honor of his 88th birthday and was inspired by friend and former President George H.W. Bush, who skydived on his 75th, 80th, and 85th birthdays. Michael R. Brown/Florida Today/AP
Houston Police Department SWAT member Rich McCuker (l.), gives a tour of the cockpit to Kaylee Gaines on Monday in Houston, Texas, during the unveiling of a retired Boeing 737 to be used for antiterrorist training. The plane was used as an Air Force trainer before being decommissioned and brought to Houston. Officials say they're unaware of any other big-city department having such an airplane to use for training. David J. Phillip/AP
An Indonesian Muslim woman checks her laptop after an afternoon prayer at Istiqlal Mosque in Jakarta, Indonesia, on Monday. People in the world's most populous Muslim nation have been facing Africa, not Mecca, while praying. Indonesia's highest Islamic body acknowledged Monday it made a mistake when issuing an edict in March saying the holy city in Saudi Arabia was to the country's west. It has since asked followers to shift direction slightly northward during their daily prayers. Irwin Fedriansyah/AP
Indians and rescue workers gather at the site of an accident at Sainthia station, India, on Monday. A speeding express train collided with a passenger train at the station in eastern India early Monday, mangling the carriages and killing at least 60 people, railway police said. AP
The Royal Air Force Red Arrow display team and a Vulcan aircraft fly over the Farnborough International Airshow 2010 in Farnborough, England, on Monday. Kieran Doherty/Reuters
People look on as Greenpeace activists mount a giant inflatable whale and a banner that reads 'Jailed for protecting whales?' on the top of the Jungfraujoch mountain above Interlaken, Switzerland, on Monday. Greenpeace is calling for the release of the two Japanese antiwhaling activists Junichi Sato and Toru Suzuki, who are threatened with a 18 month prison sentence. Marcel Bieri/Keystone/AP
A group of Santas and a reindeer from Japan gather in the Dyrehavsbakken amusement park, north of Copenhagen, Denmark, on Monday for the 52nd World Santa Claus Congress, or Bakken. The congress is held every summer and attracts as many as 200 Santas and Elves in addition to thousands of visitors. Nann Kreutzmann/Polfoto/AP
The US and Turkey have designated a zone in northern Syria for flushing out Islamic State. Jordan is also considering a similar zone in southern Syria, as President Bashar al-Assad is forced to pull back his forces.
The agreement between the United States and Turkey to establish some form of protected zone in northern Syria that is free of the extremist Islamic State heralds a potentially significant shift in Syria’s grueling civil war.