people go over there and leave morality behind.

Examples of vices include sex-related services (prostitution, strip clubs, sex shops, etc), gambling (casinos, betting shops, etc), or drug use. If the area is small, it is called a Red-light district.

Cities or areas that have this description in the America’s include:

Las Vegas, Nevada (gambling)

New Orleans, Louisiana (wild partying)

Montréal, Québec, Canada (strip clubs, sex shops)

Terre Haute, Indiana (gambling, alcohol)

Windsor, Ontario, Canada

Lynn, Massachusetts, US (Lynn Lynn the city of sin you never come out the way you went in; wine, whiskey, women, and gin; Lynn Lynn the city of sin.)

o The Boy’s Town, Nuevo Laredo, Mexico area

So they say.