Photos: Five virtual worlds you need to know about

Twinity is all about recreating real world cities in 3D, with Berlin being the first metropolis to be reborn virtually.

Although Twinity is still relatively young - it was only launched at the beginning of September and is currently in beta form - the virtual world looks to appeal to cities looking for a new way to promote themselves.

Created by German company Metaversum, Twinity allows users to explore virtual Berlin, checking out sites such as the Brandenburg Gate (above) and Alexanderplatz.

People can even buy and furnish their own apartments in the city and the platform is already getting commercial interest with German cinema operator, CineStar, opening the first virtual cinema.

Other cities in the pipeline include London and Singapore.

Picture credit: Metaversum