Noun: Patina (puh-TEE-nuh)
1 a. A usually green film formed on copper and bronze by exposure to moist air and often valued aesthetically for its color.
b. A surface appearance of something grown beautiful especially with age or use.
2. An appearance or aura that is derived from association, habit, or established character.
3. A superficial covering or exterior.
Sample sentence: Although the winery is brand-new, it has been constructed and decorated to give it a patina of old-world quaintness.