All Aboard! in preparation for two weekends filled with railroading history at East Tennessee State University. On May 29, the George L. Carter Railroad Museum, located in the Campus Center Building, will kick off its Modern Equipment “Horsepower 2021” Heritage Day, followed by a limited-attendance, 2½-day Tweetsie Celebration, June 4-6.Both events will allow you to see railroading’s diverse history, beginning with the annual modern diesel day to showcase today’s high-horsepower equipment.