| Image | Voter | Winner | Loser | Reason |
|---|
 | Jensen Huang | Derinkuyu, Turkey | Seattle Underground, USA | Derinkuyu is an ancient marvel, a city underground that showcases human ingenuity from thousands of years ago, whereas Seattle's underground is cool but more like a quirky historical tour. |
 | Nikola Tesla | Seattle Underground, USA | Coober Pedy, Australia | Seattle Underground captivates with its mysterious blend of history and innovation, resonating with my love for hidden marvels and technological curiosity. |
 | Charles Babbage | Wieliczka Salt Mine, Poland | Seattle Underground, USA | Pack your bags for Poland, 'cause the Wieliczka Salt Mine ain't just a dig site—it's a subterranean wonderland of chapels and sculptures that Seattle can't even dream of matching. |
 | George Washington Carver | Setenil de las Bodegas, Spain | Seattle Underground, USA | Setenil de las Bodegas captivates with its natural rock formations and unique blend of architecture and nature, offering a one-of-a-kind, picturesque experience. |
 | Linus Torvalds | Cappadocia, Turkey | Seattle Underground, USA | Cappadocia's surreal landscapes and unique rock formations offer a natural wonder that's hard to beat, even for a tech nerd like me. |
 | Kurt Vonnegut | Coober Pedy, Australia | Seattle Underground, USA | Coober Pedy's outlandish underground homes and opal mining quirkiness are like science fiction coming to life, which would tickle any Vonnegut fan's fancy. |
 | Pythagoras | Montreal Underground City, Canada | Seattle Underground, USA | Montreal's Underground City is like a massive, bustling labyrinth of shops and tunnels, making it way more epic than the quaint, historic tour of Seattle's underground. |
| Nikola Tesla | Wieliczka Salt Mine, Poland | Seattle Underground, USA | The Wieliczka Salt Mine is an electrifying marvel of engineering with its massive chambers and astonishingly intricate salt sculptures, a place after my own heart where science and art coalesce beautifully. |
 | Archimedes | Montreal Underground City, Canada | Seattle Underground, USA | Montreal's Underground City is a sprawling urban playground, perfect for dodging cold weather while shopping and exploring, making it the ultimate subterranean experience. |
 | John von Neumann | Montreal RESO, Canada | Seattle Underground, USA | Montreal RESO wins for its extensive, year-round accessible network that keeps folks warm and connected downtown, unlike Seattle's cool but smaller and more touristy underground tour. |
| George Washington Carver | Derinkuyu, Turkey | Seattle Underground, USA | Derinkuyu is like a historical underworld labyrinth that blows your mind with its ancient engineering and depth, making it a must-see! |
 | Andy Weir | Seattle Underground, USA | Beijing Underground City, China | Seattle Underground is eccentric, with a quirky history of rebuilding after the Great Seattle Fire, making it a nerdy treasure trove of stories and hidden passageways. |
| Jensen Huang | Montreal Underground City, Canada | Seattle Underground, USA | Montreal's Underground City is like a vibrant nerd's paradise with endless paths of shops, restaurants, and entertainment, while Seattle's is more of a cool historic tour. |
 | Richard P Feynman | Wieliczka Salt Mine, Poland | Seattle Underground, USA | Wieliczka Salt Mine is a wonderland of history and art carved in salt, way more captivating than Seattle's underground passageways. |
 | Antoine Lavoisier | Derinkuyu, Turkey | Seattle Underground, USA | Derinkuyu's ancient underground city vibes are unbeatable, with layers of history that make it feel like you're stepping into a whole different world. |
 | Louis Pasteur | Cappadocia, Turkey | Seattle Underground, USA | Cappadocia's surreal landscapes and hot air balloon rides are like stepping into another world, and that's an experience too unique to pass up! |
 | Guido van Rossum | Seattle Underground, USA | Subtropolis, USA | Seattle Underground has that quirky, historical vibe that geeks like me just can't resist. |
| Guido van Rossum | Seattle Underground, USA | Subtropolis, USA | Seattle Underground is quirky and historic, and as a self-proclaimed nerd, I can't resist the cool stories and unique vibe of exploring a city beneath a city. |
 | Buckminster Fuller | Setenil de las Bodegas, Spain | Seattle Underground, USA | Setenil de las Bodegas is a marvel of sustainable, harmonious living with nature, embodying principles I cherish in design and architecture. |