Europe: EC Regulation 1889/2005 states that: “Any natural person entering or leaving the Community and carrying cash of a value of Euro 10,000 or more shall declare that sum to the competent authorities of the Member state through which he is entering or leaving the Community in accordance with this Regulation”.
Please consult your travel agent and/or the relevant authorities (embassies, consulates or other local authorities) to find out whether there are any other restrictions to carrying cash on your itinerary.
For further information on travel please consult the  Important Travel Advice page