European Coaster Club on Twitter: "Schwarzkopf Saturday??? The famous Olympia Looping! Designed by Anton Schwarzkopf and build by Zierer. # Schwarzkopf #rollercoasters #Zierer https://t.co/pAL9Xuz1n2" / Twitter
Big Bend Ride Retrospective - Guide to Six Flags over Texas
Colossus: The Fire Dragon – Lagoon History Project