Passport validity:
Must have at least six months validity remaining beyond your planned date of departure from the Schengen area.
Blank passport pages:
Two pages required for entry stamp
Tourist visa required:
Not required for stays under 90 days
Vaccinations:
None
Currency restrictions for entry: €10,000 maximum or equivalent
Currency restrictions for exit:
€10,000 maximum or equivalent
Source : travel.state.gov