London Planetarium

Housed in the same building as Madame Tussaud's, and admitted on the same ticket, is the London Planetarium, recently renamed The Auditorium. Though shows have been reduced in number and length, visitors can still get an impressive view of the sky as seen from London's latitude and longitude. The current show lasts only ten minutes and with the renaming it's uncertain how long the owners - who also own Madame Tussaud's - will continue it. So, catch it while you can.