score:7
According to the Airport Website, there are three hotels at the airport itself. As you're there for the night, you might want to book one and get a decent bed! It also rates well for sleeping in the airport itself if you needed to...
If you have 14 hours, then that's probably long enough to head into town, see some of the city by night, crash there and make it back. The Airport Bus runs 24/7, including all public holidays.
Upvote:4
Melbourne -- go to the city centre, will take you half an hour by taxi or SkyBus from Tullamarine Airport (MEL) and then get off at Southern Cross Railway Station.
From Southern Cross, take a TRAM (a quintessential Melburnian experience) to Flinders Street Station. After alighting at Flinders Street Station, head off to Federation Square. At Fed Square you can: 1. Visit the Australian Centre for the Moving Image 2. Visit the National Gallery of Victoria (the actual gallery is across the street from Fed Square but there is the Ian Potter Centre inside Fed Square itself). 3. Sample the food at Fed Square restaurants. Chinatown is a five-minute walk as well. 4. Visit the Visitors Centre for more ideas. 5. Take the City Circle tram for a short tour of the city centre. 6. Take the Melbourne City Tourist Shuttle for a more extensice tour of the city area.
Enjoy!