Around two million people visit the park each year — and it's easy to see why.

California's Lake Oroville was once a destination spot for boating and swimming, but a five-year drought has decimated its water level.

A Canadian teenager used star charts and Google Earth satellite images to find what could be the ruins of a lost, ancient Mayan city.

This from the government that allows an annual penis festival.

Ambitious or power hungry? Was Empress Wu Zetian -- China's only female ruler -- truly as evil as the history books say?

A new study reports that 95 percent of all coral have been exposed to conditions that cause bleaching.

Forget buying a new bathing suit; each year, performers in Edinburgh, Scotland's Beltane Fire Festival welcome summer with flames and nudity.

This incredible photo comparison shows how archaeologists restored the abandoned Mayan temple of El Castillo in Chichen Itza to its former glory.

See the astounding camera they needed to spot these sharks.

Did the world's greatest writer ever even exist?

This incredible video shows you LSD's effects on the human brain like never before. You won't believe how powerful this drug truly is.