A new observation tower is in the works. Five designs (after clicking, scroll down for images)by British architecture firms have been shortlisted in the competition to build the Mersey Observatory, an �11m viewing point and gallery space for the beach. The designs – which range from a dramatic, pier-like structure to a tower shaped like a lava lamp – are on display around Liverpool until Friday. Follow resident’s comments about their favorite designs at the online forum, merseyobservatory.com, before the winner is announced on March 17. (via The Guardian)