Here's a few of hidden gems, must-do activities, and Instagrammable spots in Tennessee that promise an unforgettable experience:

Hidden Gems:

1. Fireflies of the Great Smoky Mountains, Gatlinburg: Witness the synchronized flashing of fireflies, a rare natural spectacle, for two weeks starting mid-June in the Great Smoky Mountain National Park​​.
2. The Bell Witch Cave, Adams: Explore the eerie caves and hear the haunting tales of the Bell Witch who terrorized the Bell family in the 19th century​​.
3. Lost Cove Settlement, Erwin: Discover the ruins of a once-thriving moonshiner community hidden in the mountains​​.
4. Oak Ridge "The Secret City", Oak Ridge: Visit the once-secret city, vital to the Manhattan Project during WWII, now open for tours​​.
5. Crystal Shrine Grotto, Memphis: A unique art installation within the Memphis Memorial Park Cemetery featuring biblical tableaux amidst unusual stone formations​​.

Must-Do Activities:

1. Discover the Synchronous Fireflies: Enjoy a magical light show by fireflies in the Great Smoky Mountains National Park​​.
2. Climb the Sunsphere, Knoxville: Get a bird's-eye view of the city from this iconic structure with its 24-karat gold glass dome​​.
3. Ride the Southern Belle Riverboat, Chattanooga: Relax on a scenic cruise along the Tennessee River with stunning views and possibly live music​​.
4. Walk the Iconic Broadway Street in Nashville: Explore bars, pubs, eateries, and live music venues in this vibrant area​​.
5. Hike in Great Smoky Mountains National Park: Encounter diverse plants and animals in this vast and beautiful natural area​​.
6. Visit Graceland, Memphis: Graceland, the former home of Elvis Presley, offers a unique glimpse into the life of the King of Rock 'n' Roll with a museum displaying his living rooms, memorabilia, and the famed Jungle Room​​.
7. Explore Sun Studio, Memphis: Known as the birthplace of rock & roll, Sun Studio is where legendary artists like Elvis Presley, Johnny Cash, and B.B. King recorded some of their first hits. Today, it operates as a recording studio and tourist attraction​​.

Instagrammable Spots:

1. Biscuit Love, Nashville: Known for their mouthwatering biscuits and 'bonuts', this spot is perfect for food lovers looking to add a southern twist to their feed​​.
2. Grand Ole Opry, Nashville: Capture the essence of country music history at this iconic venue​​.
3. Bonnaroo, Manchester: Snap vibrant pictures at this music and arts festival full of art installations and live performances​​.
4. Dollywood, Pigeon Forge: Share the fun of this amusement park set against the backdrop of the Smoky Mountains​​.
5. Clingmans Dome, Gatlinburg: Capture panoramic views from the highest point in the Great Smoky Mountains National Park​​.
6. Reelfoot Lake, Tiptonville: Photograph this unique ecosystem with Cypress trees growing right out of the water and home to thousands of bald eagles​​.

These selections offer a blend of nature, history, and culture, ensuring that your journey through Tennessee is as enriching as it is exciting. Whether you're a history buff, a nature enthusiast, or just looking to capture that perfect Instagram shot, Tennessee has something special for everyone.