In a Stupa: Wandering dumbly around a temple with no understanding of what you're looking at is incredibly boring. A quick visit to the official website of the Rumtek Dharma Chakra Centre, one of Sikkim's main religious destinations, will let you expound sagaciously about the turquoise and coral of the main stupa and explain the meaning of the butter-and-rice sculptures to your stupa-fied travel companions. A schedule of special ceremonies, such as the Mahakala mask dances and Tibetan New Year celebrations, will enable you to sound even more erudite.
On the Map
Start Plotting: This site's boring design and dull name hides some excellent content on the state of Sikkim. Links to sections on Sikkim's history-China briefly invaded the country in the 1960s-and a variety of useful maps make a browse worthwhile. It also has great links to help plan a trip to the mountainous state from Darjeeling and other points in India.