The Tussaud's Group is the owner of:

Madama Tussaud's London
Madama Tussaud's Amsterdam
Madama Tussaud's Las Vegas
Madama Tussaud's New York
Madama Tussaud's Hong Kong
Alton Towers
The London Eye
Chessington World of Adventures
Thorpe Park
London Planetarium
Warwick Castle

They are probably the richest themepark-operators in the world and don't have any problem with spending money on themeing for big rides...