Smithsonianjourneys.org offers a wide variety of educational tours around the world.
Joined by tour experts you can travel to the destination you choose from, where you will sample local flavors, create friendships, maximize time and spend it in the places of most interest. This site has an easy way of selecting where you would like to go. You can choose by continent or by type of tour; land-based, cruises, train, privet jet, family programs, etc. Once you choose your destination you will have a detailed list of the itinerary, information on your leader, a tour map, the accommodations, and everything you need to know. You can book your tour online by selecting the departure date and the number and information of the people that will be traveling with you. Also you will need payment information to submit your booking. Apart from educational tours this site also offers free catalogs, and email newsletters to keep you updated on the latest tours and news. 
