A cable car could be used to link Excel and The 02 arena in time for the 2012 Olympics, under new plans unveiled by Transport for London (TfL).
The £25 million cable car crossing over the River Thames would link the London venues.
It is one of a number of alternative plans being considered following the rejection of a six-lane road bridge linking the Greenwich Peninsula and the Royal Docks.
Carrying up to 2,500 passengers an hour in each direction, the cable car would cross the water at a height of around 50 metres, taking five minutes to travel from one side to the other.
"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," said London Mayor Boris Johnson.
Earlier this year, a £165 million expansion programme created the International Conferencing Centre, which sits alongside the existing facilities of Excel London.