Brimming with trash, Garbage City is the destination for all of Cairo's refuse - but it's not a dumping ground. 30,000 people called the Zabbaleen live here.

Built in 1922, the steeply banked concrete curves of Spain's Sitges-Terramar auto racetrack have slumbered in quiescence for the better part of a century.

Placing hideaways, learning facilities and vacation rentals in the treetops, Blue Forest has built a reputation for whimsical structures that celebrate nature.

These 14 highly unusual eateries take to the rivers, lakes and seas of the world, including Hong Kong's huge Jumbo Kingdom and Germany's BBQ Donut.

Perched atop the Southbank Centre, a riverboat-shaped apartment called 'A Room for London' will offer lucky guests amazing views of the Summer Olympics in 2012.

In the Year of the Dragon, white elephants abound as an eerie village of empty and abandoned villas epitomizes China's ever-expanding real estate bubble.

A huge inflatable red ball travels around the world, showing up in cities like Toronto and Abu Dhabi, squeezed into entryways and hovering above the street.

These mobile and temporary pop-up restaurants, cafes and bars won't stay in your area long enough for you to get bored with them, so enjoy them while you can.

I'm livin' it! These 10 sizzlingly odd McDonald's restaurants show that when it comes to architectural innovation, there's life in the old grill yet.