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Located amongst the beautiful Black Hills of South Dakota, the Cosmos Mystery Area is a unique, family friendly attraction. Guests can enjoy a 30 minute tour that displays how mystery, comedy, and science collide as they participate in hands-on experiments and educational entertainment.
Suitable for all physical fitness levels
Not wheelchair or stroller accessible
For a full refund, cancel at least 24 hours before the scheduled departure time.
Cosmos Mystery Area
The mystery house located within the Cosmos of the Black Hills was discovered in 1952 by two college students who were looking for the perfect place to build a summer cabin. Here, the laws of logic and physics seem to be turned upside down as you feel a slight unbalance in this crooked old cabin. Admission includes a 30 minute guided, interactive tour where you will be amazed as you see water run uphill, can stand on a wall, and see other incredible optical illusions. The tour consists of various demonstrations that are designed to boggle the mind. Located just minutes from Rapid City and Mount Rushmore, The Cosmos is sure to astonish and amaze the mind.
Local guide
Food and drinks
Hotel pickup and drop-off
Transportation to/from attractions
Cosmos Mystery Area
24040 Cosmos Rd, Rapid City United States
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215 đánh giá
Tổng số đánh giá và xếp hạng từ Viator & TripAdvisor
Triplethreat143,,4 thg 10, 2025
- Đánh giá từ Tripadvisor
So much fun! Merit did an awesome job explaining everything and making it a magical experience, had fun jokes. Kept good pacing
H8702LQangelican,,4 thg 10, 2025
- Đánh giá từ Tripadvisor
This was such a fun place. It was worth the admission fee. My kids had so much fun! I would recommend this activity. The girl that helped with the geodes really was so nice and interacted well with the kids. My son said, " She must really like her job" and "she was so nice to help us". The tour guide was very knowledgeable and made some cute jokes for the crowd.

WilliamP639,,1 thg 9, 2025
- Đánh giá từ Tripadvisor
This was our 4th visit to the Cosmos and we enjoyed it as much as the first time. Our tour guide, Trig, did a fantastic job of making it very entertaining. Our grandchildren really enjoyed the entire experience. Definitely something to check out if you're in the area.
LaChandra B,,30 thg 8, 2025
- Đánh giá từ Viator
Be ready to experience nature's wonders. Kids and kids at heart will surely enjoy this attraction....
katieoD1652WU,,25 thg 8, 2025
- Đánh giá từ Tripadvisor
Evan! Such a funny guy and great tour guide! We loved our trip and what a wild place to see. Such a unique experience. The geode was worth it too!






J3154INbethanyw,,6 thg 8, 2025
- Đánh giá từ Tripadvisor
Love Cosmos! Our tour guide was so fun, and the experience is one of a kind. Will definitely be back when the pull of South Dakota returns!
406lyndsyp,,23 thg 7, 2025
- Đánh giá từ Tripadvisor
I brought 3 teens and they loved it. It’s a nice quick stop along the way to Mount Rushmore. William, our guide, was great with corny jokes.
45pujap,,22 thg 7, 2025
- Đánh giá từ Tripadvisor
We had family here from UK and wanted to give them this great experience at the COSMOS as we love this place! Thank you for making this a memorable experience for all of us
Savannah N,,18 thg 7, 2025
- Đánh giá từ Tripadvisor
This science defying mystery tour lasts 30 minutes for $10, ok price. Kids and teens would really like it. As a couple we enjoyed it too, our guide Trig was super funny. Not a must see, but on a rainy day it was a great add on to our trip.
ashleysY6997ID,,16 thg 7, 2025
- Đánh giá từ Tripadvisor
Danny was an amazing tour guide!! I loved seeing a younger crowd working the tours and gift shop. Everyone was helpful and genuinely seemed happy to be there. Highly recommend
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