One of the things I like most about Contiki is the excursions. The majority of trips that anyone plans to do, they hear about things they should do in Italy, France, and Germany; however they are always considered dreams impossible to attain.
Something cool about Contiki is that they make your traveling experience one of the best by including those excursions. Also, as a customer and traveler, you get to pick what kind of excursion you would like to do- for example, gondola rides, eiffel tower, Swaoroski headquarters, white water rafting, leather works, checking out the great barrier reef and the list goes on and on.
A good thing to mention to is COntiki has some great promotions these days- if you get in touch with a field marketing intern you can get a free excursion!
All in all, Contiki just wants its travelers to have the best experience and sometimes its through really experiencing culture through excursions.