Two weeks in Switzerland in January.

In the 4 days, you may visit some places in the Swiss or French neighbourhood, like:

Chillon castle:
http://www.chillon.ch/en/
Gruyeres castle, cheese diary and chocolate factory:
http://www.chateau-gruyeres.ch/e/multimedia/spectacle.html
http://www.la-gruyere.ch/en/navpage-ExcursionsFR-HistSitesFR-120085.html
http://www.lamaisondugruyere.ch/index.php?option=com_content&view=article&id=142&Itemid=56
http://www.lamaisondugruyere.ch/index.php?option=com_content&view=article&id=142&Itemid=56
Zermatt-Gornergrat:
http://www.gornergrat.ch/home/index.php
http://www.klein-matterhorn.ch/photos/
http://www.zermatt.ch/en/index.cfm
Entirely walled city of Murten:
http://www.murtentourismus.ch/en/navpage-DestinationsFR-MurtenFR-99305.html
http://www.murtentourismus.ch/en/navpage_list-DestinationsFR-MurtenFR.html
Roman amphitheatre and Roman Museum of Avenches
http://www.avenches.ch/en/page.cfm/siteetmuseeromain
Roman Villa of Vallon
http://www.pro-vallon.ch/allemand/mosaiques/mosaiques.htm
biggest Romanesque church of Switzerland and Monastery of Payerne
Nature Park of Grande Caricaie
http://www.myswitzerland.com/en/destinations/resorts/holiday-destinations-in-switzerland/estavayer-le-lac.html
http://www.bafu.admin.ch/dokumentation/umwelt/00111/00463/00937/index.html?lang=de
Medieval town and spa of Yverdon
http://www.yverdonlesbainsregion.ch/en/Culture_Patrimoine
Roman mosaics of Orbe
http://www.yverdonlesbainsregion.ch/en/orbe_region
Monastery of Romainmotier
http://www.yverdonlesbainsregion.ch/en/romainmotier_region
Castle and Menhirs of Grandson
http://www.yverdonlesbainsregion.ch/en/grandson_region
Menhirs and Dolmen of Onnens
http://www.onnens.ch/textes-1/dolmen/le-dolmen-de-praz-berthoud,38.html
medieval town of Neuchatel with castle, cathedral and many fine museums
http://www.neuchateltourisme.ch/en/decouvertes.html
Biel/Bienne with it's small but fine city center, good museums and a lot to see in the Lake Bienne area
http://www.biel-seeland.ch/en/discoveries/town-and-heritage/biel-bienne.1239.html
Medieval Bueren an der Aare with wooden brige over the Aar river
http://www.bueren.ch/de/inhalte/tourismus/sehenswuerdigkeiten.php?navanchor=1010025
Medieval town of Solothurn with baroque cathedral and many museums
http://www.solothurn-city.ch/topic2477.html
La Chaux-de-Fonds, capital of watchmaking
http://www.neuchateltourisme.ch/en/decouvertes/museums/clock-making-m-lanbspchaux-de-fonds.1500.html
Musical box museums at L'Auberson, Ste-Croix and Seewen SO
Have a look at http://www.myswitzerland.com/en/home.html
France:
Annecy
Chambery
Cluny monastery
Beaune. Hotel Dieu
Tournus: cathedral
Perouges: small medieval town
Lyon, capital of Rhone-Alpes and Vienne (roman excavations)
Medieval Colmar and the winyards of Alsace
Italy:
Aosta (roman theatre and museum) and the castles of Aosta Valley
http://www.naturaosta.it/castles.htm
Turin: first capital of Italy, palaces, museums, world capital of chocolate
Milan: outstanding cathedral and some fine Lombardian brick churches, good museums (Brera, Scienze e Techniche, etc.)

In 1 whole week, you can go wherever you like. Geneva is a hub of easyjet. that means that a cheap 1 week trip to more remote areas is perfectly possible. http://www.easyjet.com/