Neil Patrick Harris and David Burtka's 6-year-old daughter, Harper, is already a thrill seeker.

During a family trip to Disney World in Orlando, Florida, Harris posted videos of Harper and her twin brother Gideon's reaction to being at the "happiest place on Earth."

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While Gideon didn't appear impressed with the Magic Kingdom's It's A Small World ride, his sister couldn't get enough of the Big Thunder Mountain Railroad roller coaster. "Let's do it again!" she exclaimed after giddily screaming with Harris while on the ride.

"I think she enjoyed it," the 43-year-old actor quipped.

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Gideon and Harper's parents also enjoyed themselves. "Pirates of the Caribbean. Still stellar," Harris captioned a video of the ride that later became a blockbuster film franchise. The couple also went on Expedition Everest at Disney's Animal Kingdom together and appeared a bit more spooked than their roller coaster-enthusiast daughter.

The Burtka-Harris family have been more adorable than usual this fall season. Earlier this month, Harris took the twins to their first football game, where they cheered on the New York Giants. Check out Harper and Gideon's team spirit: