My favorite destination outside Paris is Saint-Germain-en-Laye!
Information’s by: http://www.ville-st-germain-en-laye.fr/: Département. Yvelines, population: 40162, area: 4827 ha with 3526 ha of national forest land (1 hectare= 2.471 acres). Sister cities: Aschaffenburg (Germany, 1975), Témara (Morocco, 1982), Ayr (Scotland, 1984), Winchester (USA, 1990), Konstançin (Poland, 1992).
According to Helgaud, the monk who wrote the biography of Hugh Capet's son, Robert the Pious (970-1031), "The king had a monastery dedicated to Saint Germain of Paris and erected a church, dedicated to Saint-Vincent in the forest of Laye"
A small town developed around this Saint Germain monastery and the castle, which was built in the 12th century by Louis VI the Great. Hence the name "Saint-Germain".
Saint-Germain-en-laye's three treasures:
- The famous terrace, which was designed by and built under the supervision of André Le Notre, from 1669 to 1673, is 2.4 km long. It overlooks the Seine valley with a panoramic view of Paris and its vicinity.
- The national forest, the finest jewel of our city, is what remains today of an immense, wooded massif, which at the time of the Gauls surrounded Paris and stretched from Rambouillet to the forest of Fontainebleau. The surface-area of the forest measures 3,526 hectares, and includes splendid oaks planted during Louis XIV's reign.
- The "old Castle" ("Château Vieux"), formerly a royal residence, was transformed into the National Museum of Antiquities by Napoleon III in 1862.
The easiest access is by:
• RER - 08 92 68 77 14 -
http://www.ratp.fr<br>• RER Station: line "A" of the RER (Boissy-St-Léger / Saint-Germain-en-Laye) from RER stations: Gare de Lyon, Charles-de-Gaulle Etoile, La Défense.
To be exact: it is line A1. And if you have a '
Carte orange ’ it is cheaper to change at la Défense. On RER you pay by distance. Attention: keep your ticket – you will need it to leave the station at your destination
There are several museums:
http://www.ville-st-germain-en-laye.fr/cto/de/mu.htmlMy favorite one is the '
Musée des Antiquités nationales’ in the ‚ '
Château Vieux’ ('
déformation professionelle’).

But even if you are not interested in a roundup of the French prehistory,

the castle itself is worth the visit.
http://www.musee-antiquitesnationales.fr/Also very interesting is the park next to the '
château’ with the terrace de Le Notre, where you can look down on Paris. It is beautiful to walk on this 2.4km long and 30m wide esplanade (good weather supposed).