The song that the parents sing asking their children to come home is notably a parody of the 1985 song We Are the World a charity song that was an attempt to raise money for Africa.
"City On the Edge of Forever" written by Harlan Ellison.
It's Weightless by City of Colour I took me forever to find it :)
The 1800s
the episode is called Freak City
The Paris Opera House (the Opera Populaire). However in real life the opera house is called the Palais Garnier (or Opéra de Paris, Opéra Garnier, or Paris Opéra.) The Opera Populaire was merely made up for the show.
South Park - 1997 City on the Edge of Forever - 2.7 was released on: USA: 17 June 1998
City on the Edge of Forever
South Park - 1997 City on the Edge of Forever 2-7 is rated/received certificates of: USA:TV-MA
"City On the Edge of Forever" written by Harlan Ellison.
Swansea City Opera was created in 2004.
Melbourne City Opera was created in 1997.
The Paris Opera House.
The outdoor patio seating area at the Opera Bar on the lower concourse level of the Opera House is located at 33.8587° south latitude 151.2133° east longitude. Other spots around the Opera House complex and around the city have different coordinates.
Loges is what they are called
The Sydney Opera House is situated on Bennelong Point in Sydney Harbour, close to the Sydney Harbour Bridge, in the city of Sydney, New South Wales, Australia.
New York City Opera was created in 1944.
Tokyo Opera City Tower was created in 1996.