Tiny houses are becoming more popular as people look to simplify their lives. Many people today would rather live simply and focus on travel, dining out and going on adventures over working full time to pay for a massive house, the stuff that goes with a big house and its upkeep.

Did you know that there’s a tiny house movement? It’s an architectural and social statement about living a simpler, more eco-friendly life. The movement is growing — there’s a number of online communities, classifieds and websites offering tiny house plans and advice.

To be classified as part of the movement, tiny houses measure 400 square feet or less. That’s a big difference from the square footage of an average home. According to the Census Bureau, the median size of a new single-family home sold was 2,506 square feet.

One of the best parts about a tiny house is the price tag. There’s a website dedicated just for tiny houses for sale and rent. The website, tinyhouselistings.com, shows tiny houses for sale for under $50,000. The tiny house shown below is selling for $9800 and measures 312 square feet. Many people love the idea of tiny houses as a second vacation home out in the country where they can get away from it all. With a price tag of as little as a few thousand bucks, the dream can be a reality.

If you still think paying up to $50,000 for a house is steep, Oakland, California artist Gregory Kloehn builds tiny houses from recycled and unconventional materials–like dumpsters (image below)–for less than $100. He donates many of his tiny houses to the homeless.

Don’t judge the dwellers of tiny houses. They’re not all homeless or off the grid homesteaders. Many are big design and architecture fans. And according to the tinylife.com in their infographic below, 2 out of five are baby boomers, they earn more than the average American and are twice as likely to have a graduate degree.

Tiny houses come in all sorts of styles. Some are containers (like our post about container living), some come on wheels, some are tree houses and many are contemporary. Here are five of the coolest tiny houses we’ve seen (and there’s more tiny houses in the gallery on top):

Egg House Pod by DMVA

The Belgian architectural firm dmvA designed the Egg House. It has a bathroom, kitchen, LED lighting, a bed and several niches for storage. The nose opens automatically and functions as a veranda.

Dwelle House

The Dwelle Tiny House is designed to achieve zero carbon status for those concerned with their environmental impact. The house is so well designed you forget you’re living the tiny house movement.

Koleliba Tiny House

The 100 square foot tiny house features 1 bedroom and 1 bath. At the time of posting, it was on sale for $18,000.

Lora’s Tiny House

Author Lora Higgins lives in a 192 square feet so well organized it even has an office and a washing machine. She writes about “dreaming big and living small.”

Erin Sphere Tree House

Canadian designer Tom Chudleigh designed these cocoon-like tiny houses to hang from trees. Available for purchase or for rent at Tom’s eco-retreat in the Pacific Northwest.

Which of these tiny houses would you live in?