I had no idea how impressive this relatively new museum is until I visited it in person. I allowed two hours for the visit, thinking that this would be enough time, but it was clearly not enough. I rushed through the exhibits, wishing that I had closer to a full day to take it all in. It's well worth a visit if you are in the area. However, do not be misled by the name: although it certainly deals with the Underground Railroad, as is appropriate in a city that was heavily involved in it, it covers far more than the U.S. era of slavery. It covers various sorts of human rights issues, including sex trafficking internationally and workers who are enslaved by brutal working conditions, even though they may have been hired at least nominally voluntarily. For relaxed breaks overlooking the Ohio River, there is a nice 3rd story patio with a permanent flame adding symbolism. When my toddlers grew tired of museum exhibits I let them play on the patio to gain their second wind. Many of the museum exhibits are intended for visitors older than toddlers, so that break area is particularly nice for families with very young children.