The Coolest Underground Attractions in Ohio

Ohio holds a trove of surprises for both travelers and locals, boasting vibrant cities and captivating natural landscapes. Yet, beyond its surface allure, Ohio harbors remarkable underground attractions waiting to be explored. These hidden gems offer a blend of history, adventure, and natural beauty, adding an exciting dimension to the Buckeye State’s allure. Let’s delve into some of Ohio’s coolest subterranean wonders:

Ohio Caverns

Discover the awe-inspiring Ohio Caverns near West Liberty, the state’s largest and most colorful cave system. Shaped over millennia by an underground river, these caverns dazzle with intricate formations like stalactites, stalagmites, and helictites. Tailored tours cater to various interests and skill levels: from the grandeur of the Crystal King on the Natural Wonder Tour to tracing the original explorer’s path on the Historic Tour, or exploring the geology and history on the Limestone Tour. Seasonally, the Tree Tour offers insight into the interconnected ecosystems above and below ground.

National Underground Railroad Freedom Center

In downtown Cincinnati stands the National Underground Railroad Freedom Center, a poignant testament to the Underground Railroad’s bravery and sacrifice. Through exhibits, artifacts, and interactive displays, visitors traverse the secret routes and safe houses that facilitated the escape of enslaved African Americans to freedom. The museum also addresses contemporary slavery and human trafficking, urging action for social justice.

Crystal Cave

Journey to South Bass Island near Put-In-Bay to witness Crystal Cave, home to the world’s largest celestite geode. Discovered in 1897 during winery well-digging, this cave boasts stunning blue crystals, some spanning up to 18 inches. Guided tours offer insights into its formation and history, complemented by a visit to the adjacent Heineman Winery, Ohio’s oldest family-owned winery.

Cincinnati’s Abandoned Subway

Unravel the mysteries of Cincinnati’s abandoned subway, an ambitious project halted by the Great Depression, leaving behind six miles of tunnels and stations beneath Central Parkway. While closed to the public, guided tours by organizations like the Cincinnati Museum Center and Cincinnati Preservation Association occasionally grant access, offering glimpses of this forgotten underground network.


Ohio’s allure extends far beyond its surface, with captivating underground attractions waiting to be explored. Whether you seek adventure, history, or intrigue, the Buckeye State’s subterranean wonders promise an unforgettable journey. So, on your next Ohio adventure, be sure to uncover these hidden gems that lie beneath the surface, adding depth to your exploration of this fascinating state.

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