The Blackpool Tower is not a faithful reproduction of the Eiffel Tower in a number of ways: it is nearly half the height of the Eiffel (158 m [518.4 ft] compared to 324 m [1,063 ft]), it is not freestanding, and the base incorporates a series of buildings that house its various attractions. However, it does share some similarities with its French predecessor: both are illuminated at night, both were built as world's fair structures, and both are known for their elegant design. The Blackpool Tower was opened by Queen Elizabeth II on 4 November 1963. It was designed by Sir John Burnet with architectural collaboration from Alfred Waterhouse and Henry Holiday. The tower cost £750,000 to construct ($1.5 million today) and at the time it was considered to be one of the most innovative buildings in Europe. The interior features several shops and restaurants on different levels connected by an elevator caboose system. There are also two large observation decks, one at each end of the tower. Visitors can enjoy views across the town and beyond. In 1994, Blackpool Tower became a registered charity called "The Blackpool Tower Charity". Since then, its management has been transferred to a committee made up of members of the family who own it. Members include the children of the late James Burton, who developed many popular entertainment facilities in Blackpool including the International Bowl and Ballroom.