A look at the shortlisted designs
Five designs for a £2m hilltop landmark in Kent, which will be visible from road, rail and air, have been unveiled.
Turner Prize winner Mark Wallinger is among internationally-acclaimed artists shortlisted for the Ebbsfleet Landmark.
He is proposing a white horse, 33 times life-size, which would look out over the Ebbsfleet Valley and mark the new Ebbsfleet International station.
The winning design will be announced this autumn and is expected to be completed in 2010.
Two other former Turner Prize winners, Richard Deacon and Rachel Whiteread, are among the artists whose designs were also revealed on Wednesday.
Whiteread is proposing to create a craggy "recycled mountain" with a life-size cast interior of a house on the top.
Deacon's sculpture would be a "nest" of steel latticework outlining 26 interconnecting polyhedrons.
French artist Daniel Buren has designed a "signal" tower of stacked cubes with a single laser beam of light passing through it.
Sculptor Christopher Le Brun has proposed a monumental wing and disc - a reference to the winged messenger of Mercury, the Roman god of travellers and commerce.
Christopher Le Brun's design is a reference to the god Mercury
The Ebbsfleet landmark is intended to be an iconic symbol to represent the regeneration of north-west Kent, and the growth of London eastwards.
It will be sited in Springhead Park, in the south-east corner of Ebbsfleet Valley, which was occupied by the Romans.
The white horse symbol of Kent dates from Anglo-Saxon times, when the area was settled by people whose leader is believed to have been called Horsa.
Some 10,000 homes, together with offices, shops and leisure facilities, are due to be built in the area in coming decades.
An exhibition of the artists' proposals will go on show in a specially designed gallery at Bluewater shopping centre for three months from 27 May.
The winner will be selected by a committee chaired by Lord Lieutenant of Kent, Allan Willett
The Ebbsfleet Landmark has been commissioned by Eurostar, London & Continental Railways and Land Securities, the developers of Ebbsfleet Valley.