Holidays if you've got a big bonus: Auberge Du Suleil, Rutherford, California, US

Nestled in the heart of Napa Valley, Auberge Du Soleil features one of the most highly-acclaimed restaurants in California. You can enjoy wine and $175 per ounce caviar at night, and spa treatments and lounging on private sundecks during the day. But perhaps the best feature for couples: the hotel is not suitable for children under 16. You can’t do much better on the West Coast.

Cost: Depending on the time of year, rooms, suites and private maisons will cost you anywhere from £795 to £1650 per night.