Ithaa, located 16 feet below sea level, first opened its doors in 2005 and is famous for being the world's first all-glass underwater restaurant. The structure, which weighs 75 tons, was made on dry land in Singapore before being transported by ship and carefully dropped into the ocean with an additional 80 tons of sand ballast to help it sink. The cost of building the restaurant was approximately $5 million.
Ithaa's cuisine is described as contemporary Maldivian with Western and Asian influences. Items on the current menu include butter poached lobster, prawn tartare, and squid ink miso-dashi consomme. With a dining experience this unique, expect to spend some of your pirate dubloons. Lunch starts at $120 for guests of the Conrad Maldives Rangali Island Hotel, but it may be worth it, since you're also paying for bragging rights and plenty of Instagram material. If you do visit at lunch, take note: it's so bright inside Ithaa that both the waitstaff and diners need to wear sunglasses. They even have extra pairs on hand in case someone forgets theirs.