Corporate guests at the revamped Tussaud's Planetarium in London - now called the Showdome - could find themselves scrambling across Spiderman's web thousands of feet above New York in the new Web Zone venue themed on the cartoon webslinger. The Web Zone and the new Boarding Zone - where guests will be plunged into the heart of a clash between Achilles and Alexander the Great - can hold up to 300 guests for cocktail parties and launches or 120 for dinners. The two new party venues complement Tussaud's existing 350-seat auditorium.