The tallest building in the world turns two today. The Guide gets you details on the other mighty, if phallic, architectural wonders from around the world

What The Burj Khalifa
Where Dubai, UAE

Once known as the Burj Dubai, this is the tallest manmade structure in the world. 900 plush apartments in the dazzling city of Dubai. The cost of construction? About US$1.5 billion. Now compare that to Mukesh Ambani's Antilla and you might appreciate the value of your humble abode. Pics/ AFP

What Turning Torso
Where Malm , Sweden

This residential complex, designed by Spanish architect Santiago Calatrava is considered the tallest skyscraper in Sweden. The 54-storey tower was completed in 2005 and reaches a height of 623 feet. A similar, taller skyscraper named the Infinity Tower is currently under construction in Dubai, UAE.

What Antilla
Where Mumbai, India

Location, location, location. That's why Mukesh and Nita Ambani's 27-storey, 40,000-square foot tower makes it to the list. Oh, and then there's the one-billion price tag. In US dollars. That's right. It's the most expensive home in the world. Money, money, money, must be funny in the rich man's world.

What Cubic Houses
Where Rotterdam, Netherlands

These contemporary-looking houses were designed in the 1980s by architect Piet Blom, who brief was to design housing on top of a pedestrian bridge. Each cube is symbolic of an abstract tree. Put several trees together and what do you get? A forest. Except in this case, it's a village of cubic houses.

What Ryugyong Hotel
Where Pyongyang, North Korea

Construction on the Ryu-Gyong Hotel began in 1987. After several delays, including the fall of the Soviet Union, the building is likely to be complete only sometime this year. The building measures over a thousand ft high, making it a distinctive feature of Pyongyang's skyline.