1. Italy: Italy is one of the famous lemon producing areas in the world, especially in the southern region. Italian lemon is famous for its delicious, juicy and rich aroma.
2. Spain: Spain is also one of the famous lemon producing areas in the world, mainly distributed in Valencia and Murcia. Spanish lemon is famous for its sweetness and aroma.
3. Greece: Greece is one of the famous lemon producing areas in the world, especially in the Peloponnesus and Crete. Greek lemons are famous for their delicious, juicy and moderate sweetness and sourness.
4. USA: California and Florida are one of the world famous lemon producing areas. American lemon is famous for its sweetness and juiciness.
5. India: India is also one of the famous lemon producing areas in the world, mainly distributed in Kerala and Tamil Nadu. Indian lemons are famous for their sour taste and aroma.
To sum up, lemons all over the world have their own unique flavors and characteristics. You can choose the variety and origin of lemons that suit you according to your own tastes and preferences.