Atlas Obscura is one of the largest, most well-known and most impeccably awesome archives of amazing places, foods and experiences in the world.
Here is their list of places to see in Bangladesh! From one of the longest natural sand beaches in the world, to a calm colorful palace amid the hustle and bustle of the Buriganga riverfront, to a piece of India inside a piece of Bangladesh inside a piece of India inside a piece of Bangladesh, to one of the largest and most scenic of Bangladesh's tea gardens, Bangladesh is a great place for great places! How many of these interesting sites have you been to?
Note: Some of these you cannot visit or see anymore, which have been marked with (Permanently Closed). So therefore, if you haven't already seen them, I don't know if you'll ever be able to completely finish this list.
Note 2: This is as of May 15, 2024. Sorry future people, there will definitely be more that can't be added.