Berlin's new Brandenburg International Airport won't be open until October 2013 – yes, this is the third postponement since the original target date of June 2012 was missed – but here's a glimpse at the airport will look like when they finally get around to cutting the red ribbon.

Built to replace three airports serving the German capital, including the existing Berlin Schönefeld Airport on which the new facility is based, Berlin Brandenburg Airport is handily located just 18 kilometres south of central Berlin.

It will be the new hub for oneworld partner airberlin as well as hosting Lufthansa, although Qantas says it has no plans to abandon flights to Frankfurt in favour of Berlin.

The main pier, shown during construction below, is 715 meters long (that's almost five Aussie rules football fields, or six if you're a rugby fan) with 16 glass-walled gates.

One of the three piers will be be reserved exclusively for airberlin and its oneworld partners.

The front of the terminal is an impressive sight...

... especially at night, with a soaring brightly-lit roof reaching over the access road.

The airy spacious design continues inside, of course.

The transparent walkway for passengers in transit is an especially cool touch.

Now scope out the 'Infotower', a 32 metre high observation tower for visitors to the airport, with both covered and open-air platforms.

Basically triangular in shape, the tower has an interesting twist to it – quite literally so!

The outer shell of the building is made of a transparent light-sensitive membrane which shimmers blue and white during the day and according to the airport authority, can even be used 'as a backdrop for multimedia projections'.

Just hope the lift doesn't break down, leaving you to climb all those stairs...

Berlin Airport will cater for up to 30 million passengers per year, and will grow to 50 million when further terminals are added.

An underground railway station will link the airport to Berlin's S-Bahn metro, with a separate Airport Express running to Berlin Hauptbahnhof (Berlin central station) in 30 minutes as well as high-speed rail services to Hannover, Hamburg, Amsterdam and Prague.

Adjacent to the airport itself will be the Airport City park for shops, offices and restaurants...

... and a four-star hotel connected directly to the terminal.

Other eye-catching airport designs featured on Australian Business Traveller...

• New York's stunning TWA Terminal looks like something from The Jetsons, except it was built in the 1960s!
• Kuwait's amazing 'mega-hub' airport will challenge Dubai and Abu Dhabi airports for supremacy in the middle-east
• Richard Branson's Virgin Galactic Spaceport is ready for business, with the first Virgin Galactic sub-orbital flight due by year's end