Yosemite National Park — California, U.S. As a global hub for climbers, Yosemite (below) has to be on the list. It is renowned for towering granite formations such as El Capitan and Half Dome.

The "Golden Handle" appears each month when the sun illuminates a mountain range lining a vast impact crater. Saturday night ...

On July 2 1985, European Space Agency launched the Giotto space probe to learn more about Halley's Comet ...

A Houston to New Orleans road trip is a southern adventure through interesting cities, state parks and plantations.