10 examples of amazing architecture, art and even fuel created from discarded materials like a decontamination chamber, used coffee filters and dirty diapers.

Photographers who capture amazing HDR, macro, long range, underwater and nighttime images of landscapes, animals, weather phenomena and more.

Ridiculously cute and tiny creatures like the pygmy marmoset, bee hummingbird, mouse lemur and a cat that fits in a pint glass.

Incredibly creative artists using food as a medium or subject, creating things like bacon villages, popes made of pizza and life-size butter sculptures.

Some trees are just breathtakingly spectacular, whether by their size, age or shape or other unique characteristics - from the oldest to the largest and more.

Examples of rock-cut architecture that have been skillfully carved into cliffsides and monoliths for temples, dwellings and other purposes.

The green technology industry is booming, and some eco inventions - like a biodegradable coffin coffee table - are just plain weird.

15 of the world's most stunning eco resorts, national parks, nature preserves and other destinations.

The most jaw-dropping statistics and facts about the environment, renewable energy, conservation, trash and more.

These 12 animals may not look dangerous, but they've got surprisingly aggressive instincts and dangerous defensive mechanisms.