Reporting from GRAND CANYON NATIONAL PARK — They were just a couple of greenhorns from Pittsburgh, but the Kolb brothers knew the greatest photo op in the West when they saw it. It was 1902.

Without a doubt, few sights in the United States are as stunning as the Grand Canyon. This world-famous natural wonder is a ...

This "Grand Canyon of the Pacific" is a nearly 2,000-acre ravine peppered with emerald forest and cascading waterfalls.

Here are 11 facts about the Grand Canyon, which Congress declared a U.S. National Park on February 26, 1919. 1. The Grand Canyon is not the world's deepest canyon.

Erin Evans, Managing Editor Waimea Canyon, aptly nicknamed the "Grand Canyon of the Pacific," should be at the top of every traveler's itinerary. This massive gorge – which measures 14 miles ...