Khor Virap Armenian Apostolic Church monastery, at the foot of Mount Ararat, Ararat Plain, Yerevan, Armenia, Central Asia, Asia

Stepping stones above perpetually flowing water needed to cross streets and keep the way clear for carts, archaeological site of Pompeii, UNESCO World Heritage Site, province of Naples, Campania, Italy, Europe

cross country skiing

Two barefoot women on summit of Grosslitzner, Silvretta mountain range, Vorarlberg, Austria

Hiker crossing a wooden bridge above a mountain brook, National Park Hohe Tauern, Tyrol, Austria

Hiker crossing a wooden bridge above a mountain brook, National Park Hohe Tauern, Tyrol, Austria

Cindy Fairchild, of Aurora, Colo., prays below a six-foot cross in honor of Columbine shooter Dylan Klebold at Robert F. Clement Park in Littleton. Fifteen identical crosses were planted on a hill in the park, one for each victim of the shootings at Columbine High, including shooters Eric Harris and Dylan Klebold.

Runners cross a river in the hardrock 100. Billed as the toughest running race in America by many, the Hardrock 100 covers 100 miles and includes climbing a total of nearly 30,000 feet (equivilent to climbing Everest). The race begins and ends in Silverton, Colorado and climbs several 13,000 foot passes and one 14,000 foot summit.

Statues Of Jesus Christ On The Cross And Followers At The Foot Of The Cross, County Kerry, Ireland

Leopard (Panthera pardus) walking across sloping rockface in sunshine, Laikipia, Kenya