What is the longest coaster anybody has ever built

I had one go around Evergreen Gardens 6 times, it turned out to be 13,467ft long. and it was the favorite ride in the park. And the most expensive

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Titan is going to rule the hypercoaster kingdom

I've built one over 43,000 ft. Of course with a trainer. It had an average speed of 176 mph and it had a top speed of 214.

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www.geocities.com/coasting_ohio for Real/Defunct/mini coasters and parks for RCT