From moving rocks to mammatus clouds and red tides to fire rainbows, here are seven of the most spectacular phenomenal wonders of the natural world.

Furniture designers have gotten incredibly creative when it comes to sustainable materials and concepts, to the point of the bizarre in some cases.

Let's take a brief look at this hopefully transient trend and think about what art really is. Is it culture, or is it barbarianism?

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

You thought man-made wonders were impressive? Here are seven of the most awe-inspiring animal architects and architectonic structures of the animal kingdom

Fire artists come in all kinds - from fire dancers and performers to sculptors, architects and builders. Modern fire performance has taken an huge range of directions.

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

Air, wind and sky artists can challenge our preconceptions and broaden our (literal) horizons by problematizing the simplistic duality of Earth and Sky.

There are plenty of alternative options that are cheaper, reusable, and often much cooler than the traditional Christmas tree and some amazing ornaments to go with them.

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

Water flows with gravity, water levels rise and fall with time and water even transforms from a liquid into a solid - providing amazing material variety for an artist.

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

Technical and conceptual innovations have liberated creative modern land artists to create ever more amazing works of natural sculpture and earth architecture.

Green is well within your means thanks to affordable eco-friendly products and online shopping sites with interesting green gadgets and great gift ideas for the holidays.

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