"Tell me, do you bleed?": Bat signals lit, gatherings held as Gotham's 'Dark Knight' turns 80

Fan gatherings happened all over the world to celebrate the 80th anniversary of the world's favourite vigilante on Saturday. Here are a few images that Batman fans don't want to miss.

Fan gatherings happened all over the world to celebrate the 80th anniversary of the world's favourite vigilante on Saturday. Here are a few images that Batman fans don't want to miss. IN PIC: Batman signal projected on the Domino Sugar Refinery in honor of Batman Day in the Brooklyn borough of New York. (Photo | AP) 

A man dressed as Batman looks up towards the Batman signal projected onto a building to celebrate Batman Day in Montreal, Canada. (Photo | AP)

A man dressed in a Batman costume poses for a photo in front of the Batman signal projected onto a building to celebrate Batman Day in Montreal, Canada. (Photo | AP)

A man holds Batman balloons before the Bat signal lighting in Mexico City. (Photo | AP)

Bat signal is lit in the Torre Reforma in Mexico City. (Photo | AP)

Los Angeles also celebrated the milestone with a the Batman Inaugural 5K run. IN PIC: Runners pose in their Batman costumes. (Photo | AP)

The start of the Batman Inaugural 5K run. (Photo | AP)

Medals are displayed at the end of the inaugural Batman 5K run at Grand Park on in Los Angeles. (Photo | AP)