They will be married by the Archbishop of Canterbury before returning to Buckingham Palace in a glass carriage along Parliament Square, Whitehall, Horse Guards Parade and The Mall.

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Immerse yourself in surroundings that evoke a more genteel era and watch treasures from the archives in the glass orangerie (modelled on Crystal Palace), silent films accompanied by live orchestration in the neo-classical drawing room or take part in a foley workshop (recording sound effects) in the crumbling stable block.

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Hilltop Crystal Palace Park was created to display Joseph Paxton's behemoth glass-and-iron structure, relocated from Hyde Park after the Great Exhibition of 1851.

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The banana boots Connolly used to wear on stage to "sex up" his image now sit in a glass cabinet at the local museum, "The People's Palace, " in Glasgow.

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That reputation will be enhanced next year when the decade-long excavation of a 1, 700-year-old Byzantine palace next door is completed, with new suites above it and glass floors for viewing.

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At 5 pm, the ducks march back to the elevator, which returns them to the rooftop Royal Duck Palace, where guests can also catch a glimpse of them through glass windows during off-hours.

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