All aboard -- the Union Pacific Railroad's CHALLENGER -- the largest wheeled machine on earth. This photograph was taken at a service stop in Gorham, IL. Photo taken by James R. Kyle (United States) - Travel/Vacation

This is BullDozer (Dozer for short). He is our 8 month old English Bulldog. He loves just lounging around as you can tell. He really thinks he is the king and he is but we don't tell him. Photo taken by Kim McAllister (United States) - Animals/Pets

On a recent trip around the British Isles we discovered this beautiful scene. At low tide one can walk through a causeway to the castle from shore. When the tide is in, water taxis (seen in foreground) are used to ferry people back and forth. Photo taken by Dan Fleming (United States) - Travel/Vacation

Flamingos are one of the most interesting and colorful birds to watch and photograph. Photo taken by Peter Anderson (United States) - Animals/Pets

This is my best friend's daughter, Valerie. She is adoreable and my star model for taking photos (when she cooperates -- you know how kids are). She is only 4 years old and what a personality. The day I took this picture she was playing out in the playhouse, and when she saw me, she stopped for a few minutes to pose. She is a princess. Photo taken by Donna Cuic (United States) - People/Family/Friends

I was wandering through my mother-in-law's garden to see the beautiful, yellow sunflowers, when I was struck by the sight of this red sunflower, as I had never seen one before. Photo taken by Cliff Berinsky (United States) - Nature

Fireworks light the sky during the Closing Ceremony of the Athens 2004 Summer Olympic Games. The President of the Athens Organizing Committee said; "Tonight, the Olympic Flame will cease to burn in Athens, but will continue to warm our hearts." Thank you Athens! Thank you Greece! Photo taken by Stuart Hannagan / Getty (Greece) - Holidays/Events

Katrine Fruelund of Denmark leaps to take a shot at goal in the Women's Handball gold medal match against Korea. Handball is played in an indoor court between two teams, of seven players each. The players objective is, by only using their hands, to put the ball into the goal post of the opposing team. Photo taken by Jonathan Ferrey (Greece) - Holidays/Events

Argentina and Paraguay squared off in the Men's Football (Soccer) Final. Argentina claimed the gold in a hard fought contest with a 1-0 victory. In 1900, football became one of the first team sports included in the Olympic Games. Photo taken by John McDermott (Greece) - Holidays/Events

USA's Rachelle Kunkle shows form in the Women's 3 meter Springboard Competition. Competitors perform a series of dives and are awarded points up to 10, depending upon their elegance and skill. The points are then adjusted for the degree of difficulty. Photo taken by John McDermott (United States) - Holidays/Events

Gabriel Mercedes (left) of Domincan Republic and Oscar Francisco Salazar of Mexico compete in the Men's under 58 kg Taekwondo preliminary match. Contests are scored by awarding a point for each legitimate blow and deducting a point for each penalty. It has been an Olympic sport since 2000. Photo taken by Shaun Botterill / Getty (Greece) - Holidays/Events

Fani Halkia of Greece crosses the finish line in first place in the Women's 400 Metre Hurdle Final. The crowd in Olympic Stadium erupted showing their appreciation and pride as hosts of these Olympic Games. Photo taken by Stuart Hannagan/Getty (United States) - Holidays/Events

Equestrian is the only Olympic sport where man and animal are established team-mates. A horse and rider work together for years to hone feats of grace, daring, agility and speed. Pictured is Ludger Beerbaum of Germany competing in the individual show jumping event at the Markopoulo Olympic Equestrian Centre Jumping Arena. Photo taken by Al Bello/Getty Images (United States) - Holidays/Events

Justin Gatlin of the USA edges Francis Obikwelu of Portugal and fellow countryman Maurice Greene to win Olympic Gold in the Men's 100 Meter Sprint Final. Photo taken by Alexander Hassenstein (Greece) - Holidays/Events

Australia set an Olympic and World Record in Men's Team Pursuit Cycling. Cycling at the Olympics features three exciting disciplines; road, track and mountain biking. The track is called a velodrome. In the Athens Olympic Sports Complex (OAKA) it is housed in an architecturally spectacular structure. Photo taken by John McDermott (Greece) - Holidays/Events

Takayo Kondo of Japan catches some air in the Women's Pole Vault Qualifying Round. The women's pole vault and hammer throw debuted at the Sydney 2000 Games. Photo taken by Ezra Shaw/Getty Images (Greece) - Holidays/Events

Table Tennis can be referred to around the globe as; Gossima, Whiff-Whaff, Flim-Flam, and Ping-Pong. It has been an Olympic sport since 1988. Pictured is Hyang Mi Kim of Korea as she serves during the Women's Singles Table Tennis quarter finals. Photo taken by Robert Laberge (Greece) - People/Family/Friends

Michal Martikan, of Slovakia, navigates the course during the Men's Kayak C-1 Single's event. The sport reached the Olympic Games in 1924. Almost half a century later, in Munich in 1972, canoe/kayak branched out into the dramatic whitewater version, the slalom. Slalom events, involving men's K1, C1 and C2 and women's K1(denoting one or two paddlers in a canoe or kayak), require the paddlers to negotiate 20 to 25 gates in turbulent water over a 300-meter course. Photo taken by Michael Steele/Getty Images (Greece) - Holidays/Events

The Men's and Women's Shot Put events were held at the ancient stadium in Olympia, the site of the first Olympic Games in 776 B.C. The Sacred Altis, start of the Olympic Torch relay, overlooks this ancient stadium. The theme of the ATHENS 2004 Olympic Games is, appropriately; "Welcome Home." Photo taken by Michael Steele/Getty Images (Greece) - Travel/Vacation

Archery warm-ups in Panathinaiko Stadium. Built at the end of the fourth century B.C. it went through extensive renovation in the 1890's to host the first modern Olympic Games in 1896. This stadium is will also host the finish of the Marathon Photo taken by John McDermott (Greece) - Holidays/Events

Australian Ian Thorpe wins gold in the Men's 200m Freestyle. Pieter van den Hoogenband, reaching to congratulate him won the bronze. Photo taken by Rob Tringali (Greece) - Holidays/Events

In fencing, an Olympic sport since 1896, the Men's Individual Sabre gold medal match was won by Aldo Montano of Italy. The silver went to Zsolt Nemcsik of Hungary. Photo taken by Ron Wyatt (Greece) - Holidays/Events

The Men's Cycling Road Race wound its way through the streets of Athens today. The Parthenon, atop the Acropolis, provided an incredible backdrop. Italian Paolo Bettini took the gold. Photo taken by John McDermott (Greece) - Holidays/Events

"Athletes of the world, welcome to Athens." With those words the Opening Ceremonies of the 28th Olympiad began. The pagentry and spectacle celebrated the history of Greece, a history which includes the origin of the Olympic Games around 776 B.C. Athletes from 202 nations marched into Olympic Stadium to the cheers of a nation who worked very hard to bring these Games to life. Photo taken by Ron Wyatt (Greece) - Holidays/Events