Now Playing

Adorably Unruly Cubs Cause Traffic Jam

Next Up

Exploding Tree Trunk Captured by School Security Cam

'Dying Town' Has Stuck Around for Over 300 Years

Watch: Sliding Doors vs. 60 MPH Wind Gusts

3,000-Year-Old ‘Lost Golden City’ Unearthed

Caribbean Volcano Rocked by Strongest Explosion Yet

Officials Push for First Decorative-Grass Ban in U.S.

How Cicada Invasion Could Spark Bird Baby Boom

Toxic Outbreaks Threaten More Than Just Water

The Species Most Endangered by a Warming World

Watch: Iconic Highway Rebuilt After Being Ruined by Landslide

Glacier on the Move in National Park

Caribbean Volcano Could Explosively Erupt for Weeks

Polluted Lake Choked With Plastic, Sewage & Heavy Metals

Lake Mead Expected to Hit Lowest Point Ever

Aerial View of 'Underwater Waterfall' Is Revealing

Saga of Abandoned Ship Finally Comes to an End

Historic Plantation Burns to the Ground

Vertigo-Inducing Bridge Now a Tourist Hotspot

Creative Way to Rescue Stranded Motorist

AZ Wildfire Torches Buildings, Prompts Evacuations

Watch: Hilarious Theft Captured on Live TV

'Ghost Forests' Taking Over Atlantic Coastline

What Caused First-of-Its-Kind Great Lakes Meteotsunami

Watch Huge Blocks of Ice Barge Ashore