Britain’s Queen Elizabeth lit up beacons at Buckingham Palace on Thursday evening. Its platinum feast is celebrated by lighting beacons. The Queen pressed a big button and the main beacon lit up the treetop.

The lighthouse consists of a tree 21 meters high made up of 350 smaller trees. After the Queen lights the beacon, American singer Gregory Porter sings a song and Buckingham Palace is put into the spotlight with a light show.

Beacons lit across the UK. This celebrates Elizabeth’s 70th birthday on the throne. Beacons lit not only in her homeland, but also in the Channel Islands, the Isle of Man and the British Overseas Territories.

The goal is for the beacons to form a kind of chain, as it once was as a means of communication. Today, lighthouses have become a symbol of unity between cities, countries and continents.

In 1897, beacons were lit to celebrate Queen Victoria’s Diamond Jubilee. In 1977, 2002 and 2012, Elizabeth’s silver, gold and diamond jubilees were also celebrated, as was Elizabeth’s 90th birthday in 2016.