Preachers Rock, Preikestolen, Norway Blue Caves - Zakynthos Island, Greece Skaftafeli - Iceland
digg On March 10, 1869, railroad officials, political leaders and work gangs converged at Promontory Point, Utah, to drive in the last spike of the Pacific Railroad, the first of five transcontinental railroads built in the 19th century. The driving of the spike linked the Union Pacific line built from East to West with the Central Pacific, which had commenced construction in California.