Is/are watched (on tv)/visited by millions is/are bought by is/are admired and enjoyed by has/have a long history is a spectator sport attract(s) a lot of spectators/tourists/ is/are packed with lots /books/

Are watched (on TV)/visited by millions of.
Is bought by many.
Have a long history and...traditions.
Is a spectator sport.
Attract a lot of spectators/tourists.
Are packed with lots of...items/books.