Trinity College Library (the 'Long Room'), Dublin. There has been a library at the College ever since it was founded (in but the Long Room was not begun until Completed in it is the largest library in Ireland, containing books.
The Underwater Waterfall of Mauritius Island: Mauritius Island is located in the Indian Ocean east of Madagascar. The waterfall is an optical illusion created by sand washed into patterns that make it appear as an underwater waterfall.
The Best Suites in the World - Conrad Maldives Rangali Island - Yes, you can fulfill this dream. This is an underwater suite that is present at Conrad Maldives Rangali Island. Only 20 feet of Indian Ocean is present above you in this suite.
Explore the ancient caves of Hang Son Doong, Vietnam. Hang Son Doong is one of the largest caves in the world and features a fast-flowing underground river. For spelunkers, exploring Hang Son Doong is the equivalent of scaling Mount Everest.