Click on a thumbnail to go to Google Books.
Ringworld (original 1970; edition 2001)
by Larry Niven
Amazon.com Product Description (ISBN 0345333926, Mass Market Paperback)A new place is being built, a world of huge dimensions, encompassing millions of miles, stronger than any planet before it. There is gravity, and with high walls and its proximity to the sun, a livable new planet that is three million times the area of the Earth can be formed. We can start again!
(retrieved from Amazon Thu, 14 Feb 2013 13:40:10 -0500)
Two humans and two aliens, who are traveling to distant reaches of space to prevent a future catastrophe, crash on a ringworld apparently created by superior technologies.
(summary from another edition)
Is this you?
Become a LibraryThing Author.