» more from Food and Beverage

Cereal Killer Cafe - which only serves bowls of cereal - opened its doors last week in London's hip East End.

Selling around 120 cereal brands, customers can enjoy everything from Captain Crunch to cereal branded with images of Prince William and his wife Kate.

It's not the first breakfast-based cafe - Cereality in the U.S. has two branches - but it's yet another example of an off-beat hangout, which appear to be especially popular with hipsters.

From board games to pirate ships, CNBC looks at some of world's craziest hipster hangouts.

By Alexandra Gibbs, special to CNBC.com

Entrepreneur Brothers Alan and Gary Keery | CerealKillerCafe.com