There are six fields here to fill in: - the name - the size, e.g. dimensions, or diameter. Recommended to use the metric system (metres). - location, optional - description - illustration, what the object looks like - iceberg scale; surface to trenches, how many people know about these. There are also frequently objects that appear at random, chosen from a raffle of 64. You might want to look into these to research, although I have already added some of them.
World's hottest chocolate - individual pieces are 3/8 x 1/3 x 0.12 ". Iceberg obscurity: 6/8 (Very deep)