Nottingham city centre will host the 20th annual St Patrick's Day Parade this weekend.
More than 470 landmarks in 56 countries, ranging from museums and towers to statues and stadiums, are being illuminated in green to coincide with the Irish national day.
The Sydney Opera House, the London Eye and the Empire State Building in NY are among the landmarks taking part.
This event is staged by the Nottingham St Patrick's Day Committee through a programme of year-round fundraising.
The campaign costs about 48,000 euro to conduct, but it is worth about 10 million euro to the Irish economy, according to the tourism marketing body.
"We are delighted to welcome additional significant landmarks this year - especially the world's tallest building, the Burj Khalifa", said Aidan Cronin, Ireland's ambassador to the UAE.
Other new sites taking part this year include Burj Khalifa in Dubai (the world's tallest building), Victoria Falls, York's medieval City Walls, Lord's Cricket Pavilion in London, Nation Towers in Abu Dhabi, the Atakule Tower in Ankara and the Shizuoka Stadium ECOPA in Japan (where Ireland will play Japan in the Rugby World Cup in September).
The O'city parade route is a change from a year ago when it was located in Bricktown.
Last year, more than 10 million overseas visitors made a trip to Ireland.