The most breathtaking subway exit in the world may be the one at Place de l’Opéra in Paris. Its final steps lead to a postcard-ready view of the sensational Palais Garnier, the love-it-or-hate-it ...

PARIS (CNN) -- After the "fat lady" sings, where does she hang her dress? Thousands of costumes from shows performed by the Paris Opera have been stacking up for years -- all stored in a warehouse ...