Question: What is the number of individuals who engage in a guided tour of the Sydney Opera House every year?
About the article "Sydney Opera House", section "Abstract".

Candidate passages:
Olivia's Live Hits is a live album released in 2008, based on the tour of Olivia Newton-John in Sydney Opera House in 2006.
A DVD called "Live at the Sydney Opera House" was also recorded. 
The Sydney Opera House is a multi-venue performing arts centre in Sydney, New South Wales, Australia.
Situated on Bennelong Point in Sydney Harbour, close to the Sydney Harbour Bridge, the facility is adjacent to the Sydney central business district and the Royal Botanic Gardens, between Sydney and Farm Coves.
Designed by Danish architect Jørn Utzon, the facility formally opened on 20 October 1973 after a gestation beginning with Utzon's 1957 selection as winner of an international design competition.
The NSW Government, led by Premier Joseph Cahill, authorised work to begin in 1958, with Utzon directing construction.
The government's decision to build Utzon's design is often overshadowed by circumstances that followed, including cost and scheduling overruns as well as the architect's ultimate resignation.
Though its name suggests a single venue, the project comprises multiple performance venues which together are among the busiest performing arts centres in the world — hosting over 1,500 performances each year attended by some 1.2 million people.
The venues produce and present a wide range of in-house productions and accommodate numerous performing arts companies, including four key resident companies: Opera Australia, The Australian Ballet, the Sydney Theatre Company and the Sydney Symphony Orchestra.
As one of the most popular visitor attractions in Australia, more than seven million people visit the site each year, with 300,000 people participating annually in a guided tour of the facility.
Identified as one of the 20th century's most distinctive buildings and one of the most famous performing arts centres in the world, the facility is managed by the Sydney Opera House Trust, under the auspices of the New South Wales Ministry of the Arts.
The Sydney Opera House became a UNESCO World Heritage Site on 28 June 2007.
Olivia Newton-John and the Sydney Symphony: Live at the Sydney Opera House is a HD video (16:9) released in 2008 for a tour of four concerts at the Sydney Opera House of singer Olivia Newton-John.
The show was done in March 2006 with her band and Sydney Symphony conducted by Rick King.
Produced by Olivia's Gaia Productions. 
The parks are open to the public and the interior of the House can be seen with a guided tour.
Guided tours are offered for visitors the year around and there is also a shop and a restaurant.
Every summer, an open air theatre is held in the gardens.
Gunnebo House should not be mistaken with the village of Gunnebo in the province of Småland, South-East Sweden. 
The building also houses a recording studio, cafes, restaurants and bars and retail outlets.
Guided tours are available, including a frequent tour of the front-of-house spaces, and a daily backstage tour that takes visitors backstage to see areas normally reserved for performers and crew members.