Edward Leedskalnin built his Coral Castle in secret leaving scientists, engineers, scholars baffled since 1932. See a hand-carved 9-ton gate, a Polaris telescope, the worlds only sundial with seasons. Spanning 28 years in the making, Ed built Coral Castle at night secretly without any help. No one knows how he excavated, carved and placed 1,100 tons of coral in the large open area. His creation has been compared to the Egyptian pyramids and Stonehenge. Top ranked by TripAdvisor and Yelp! Top 10 Historic Hot Spots South Florida. Continuous live tours and be sure to stop by the Coral castle Café. Sunday- Thursday 8am-6pm, Friday-Saturday 8am- 8pm.