The power of fun is often lost on grownups, but these two public art projects helped put some fun back into the daily lives of UK pedestrians.

Advertising firms are always finding new ways to grab our attention. One Dutch company is using an environmentally-safe method to temporarily tag the sidewalks.

Not all military fortresses were boring boxes. Around the time cannons became popular, so did star-shaped forts designed to withstand the powerful weapons.

A faltering economy has forced businesses all over the world to shut down. So how do you keep the local economy alive and attract more businesses? You fake it.

Miniature city models are incredibly useful for city planning and architectural design, but they also bring out the kid in just about everyone who sees them.

Everyone loves Lego, but these masterful sculptures prove that it's much more than just a toy. Here, the most famous buildings meet the world's favorite bricks.

After hearing about the fabled secret passages beneath one of the oldest cathedrals in the world, one director set out to get answers for himself and the world.

Off-grid living can mean a number of things, but for these people, it means living in an unusual place under extraordinary circumstances.

Shipping containers are wildly versatile for all kinds of buildings. Now they're being used to feed the workers at the World Trade Center Building Site.

Soviet ingenuity made these amazing snow vehicles, which featured aircraft engines and could take civilians and soldiers through even the harshest winters.

We've come to think of humans as the masters of the planet, but individually we are still small and vulnerable. This lovely photo series captures our frailty.

Compilations of unusual Google Street View images aren't hard to find. But artist Jon Rafman compiles the touching human images most people never see.

Living in NYC is confusing enough, but trying to read through government guidelines is nearly impossible. These projects clarify, enlighten and even entertain.

Urban rooftops are often neglected, but some clever homeowners are using them to their full potential: to support extended, unique, sky-high living areas.

Ever since the invention of the car and the airplane, dreamers have been trying to combine the two. Today, they may be closer than ever to making it a reality.