Top places to see in the UK with airport transfer taxi services Luton? The Giant’s Causeway in Northern Ireland is a geological marvel. The dramatic coastal feature, made up of 40,000 basalt stone columns, has attracted visitors for centuries, but it became Northern Ireland’s first and only UNESCO World Heritage Site in the 1980s and now also boasts a great visitor centre thanks to the National Trust. There are no museum ropes holding you back here. Wander over the shiny stones, sit on the Wishing Chair – a natural throne polished by thousands of bottoms – look out for rock …