(CNN) - Cities across the world on Saturday marked Batman Day by flashing the Bat Signal across buildings and into the night sky, a nod to the Caped Crusader on his 80th birthday.
Fans of the DC Comics superhero spotted his famous distress call at 8 p.m. local time in Melbourne, Tokyo, Johannesburg, Berlin, Rome and London, among other major cities.
Batman Day celebrations began in Melbourne, Australia, where fans got to see the bat signal illuminating the skies at Fed Square.
The Dark Knight's famous logo was displayed at Shibuya Scramble Crossing in Tokyo, Japan.
In South Africa, the image was projected across the side of Johannesburg's new Leonardo Building, now the tallest building in Africa.
The bat signal even flashed across the Senate House in London.
The superhero's distress signal also lit up Roma Termini in Rome.
Germans also joined in the fun, displaying the iconic signal on Potzdamer Platz 11 in Berlin.
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