ah, what to say? There is so much incredibly beautiful orchestral music out there; these are probably the first 10 that came to mind. Rossini's overtures delight me too....and soooo many more compositions......
I chose the youtube selections randomly. It's worth exploring the different interpretations online but these will be a safe jumping-off point....
Concerto for Orchestra Bela Bartok
Beethoven Symphony No. 6 Ludwig van Beethoven
Carmen Suite George Bizet
Symphony No. 4 Johannes Brahms
Prélude à l'Après-midi d'un faune Claude Debussy
New World Symphony Antonin Dvorak
Daphnis and Chloe Maurice Ravel
Scheherazade Nikolai Rimsky-Korsakov
Petrouchka Igor Stravinsky
Symphony No. 4 Pyotr Illyich Tchaikovsky