Iceland is a land of many surprises, and it's not just the stunning natural beauty that attracts visitors. Iceland is also home to a variety of unique and unusual restaurants that offer an experience unlike anything else in the world. Here are 10 unusual restaurants in Reykjavik Iceland that you should add to your itinerary, along with some of their most unusual dishes:

1. Perlan Restaurant: This restaurant is located inside a futuristic glass dome that sits atop six hot water tanks. The menu features modern Icelandic cuisine, such as smoked puffin and lamb fillet with blackcurrant sauce, with breathtaking views of Reykjavik and the surrounding countryside.
2. Friðheimar Greenhouse Restaurant: Friðheimar is a tomato farm and restaurant that allows diners to dine inside a greenhouse surrounded by tomato plants. The menu features dishes made with fresh, organic tomatoes, including tomato soup, tomato-based pasta dishes, and tomato cocktails.
3. Icelandic Street Food: This restaurant offers traditional Icelandic street food, such as lamb soup, Icelandic hot dogs, and fish and chips, served in a cozy, casual atmosphere.
4. The Viking Village: The Viking Village is a themed restaurant that offers diners the chance to dine like a Viking, complete with authentic Viking costumes and live entertainment. The menu features traditional Icelandic dishes like whale meat, reindeer meat, and fermented shark.
5. Rok Restaurant: This restaurant features a unique twist on traditional Icelandic cuisine, with dishes like reindeer carpaccio, grilled puffin, and charred whale with bearnaise sauce.
6. Kopar Restaurant: This seafood restaurant is located in the heart of Reykjavik's harbor and offers diners stunning views of the ocean. The menu features a range of seafood dishes, including cod cheeks, langoustines, and scallops.
7. Kol Restaurant: Kol Restaurant is a cozy, modern restaurant that offers a range of Icelandic and international dishes, including Icelandic lamb, beef tartare, and smoked arctic char.
8. Mink Viking Portrait Studio & Restaurant: This unusual Icelandic restaurant is also a portrait studio, allowing diners to dress up in Viking costumes and take photos while enjoying a meal of traditional Icelandic dishes like smoked lamb and salted cod.
9. Grillmarkadurinn (The Grill Market): This upscale restaurant in Reykjavik offers a unique take on Icelandic cuisine, using locally sourced ingredients and traditional cooking techniques to create dishes like grilled puffin, whale steak, and Arctic char. The decor is equally impressive, with an open kitchen, wood-fired grill, and walls made of lava rock.
10. The Slippbarinn: This trendy Reykjavik restaurant and bar is located inside the Icelandair Hotel Reykjavik Marina and features a unique blend of Icelandic and international cuisine. The menu offers a range of dishes, from fresh seafood to vegetarian options, and the cocktail list is equally impressive, featuring locally inspired drinks like the "Reykjavik Cosmo" and the "Midnight Sun." The restaurant also features live music and DJs, making it a popular spot for nightlife in Reykjavik.

In conclusion, Reykjavik is home to a range of unusual and unique restaurants of Iceland that offer an experience unlike anything else in the world. From dining underwater to cooking your own food using geothermal heat, these 10 unusual restaurants in Reykjavik offer a taste of the country's adventurous spirit and should be on any food lover's list of places to try. So, don't be afraid to step outside of your comfort zone and try something new – you never know what culinary adventure awaits you in Iceland!