The O2 Arena has become a busy London landmark
A proposed cable car crossing the river Thames, linking the O2 Arena and the ExCel Exhibition Centre, could be built before the 2012 Olympics in London.
The privately funded £25m project would enable an estimated 2,500 people to make the five-minute crossing per hour.
London Mayor Boris Johnson revealed that a period of public consultation will take place until 2 August, with a planning application due next year.
The idea is inspired by cable cars in New York, Singapore and Barcelona.
"A cable car spanning the majestic Thames would not only provide a unique and pioneering addition to London's skyline, but also offer a serene and joyful journey across the river," Johnson said in a statement.
"Passengers would be able to drink in the truly spectacular views of the Olympic Park and iconic London landmarks whilst shaving valuable minutes from their travelling time.
"It would also provide a much-needed enhancement of cross river options to the east of the city."
Discussions are ongoing with a number of private sector organisations that have expressed interest in the project.
Connecting key London landmarks Greenwich and the Royal Docks, the cable car would travel at a height of more than 50 metres.
The areas are currently linked by road tunnels, but there are no bridges.
Previously known as the Millennium Dome, the O2 Arena has hosted a number of major events in recent years and, like the ExCel centre, will be a venue for Olympic sport.