Borderlands: Game of the Year Edition
81 Achievements
64-76h
Sucker born every minute
Paid for a worthless tour of the world's largest bullet Details for this achievement will be revealed once unlocked
4.0%
How to unlock the Sucker born every minute achievement in Borderlands: Game of the Year Edition - Definitive Guide
Yeah, that's all you're going to get.
You can view a video showing the exact location below (credit to Xzeno on YouTube):
This achievement is unlocked for paying to see the world's largest bullet. To do this head through 'The Ridgeway' and into 'Sunken Sea' and go to the area on the map below. Here you will want to press on a donation box to pay for your tour of the world's largest bullet. The cost is very high, $8,000,000 to be precise, however at this stage of the game, it's very likely that this amount of money will not dent your finances too badly. Once you've have donated the money, the achievement will unlock.
The World's Largest Bullet is in the Sunken Sea region. You need to deposit a lot of money and you will get this trophy. The actual amount you deposit is inconstant: sometimes as little as half your balance but usually around 8 million dollars. To get up to $9,999,999 - just keep picking up loot the enemies drop, especially what Cramermax drops, and sell it to vending machines.
While playing mission 11 "Code Breaker: Time is Bullets", you will go nearby to pick up an ECHO recording. Complete the mission, then walk back outside the mini-town where there is a pole that saves the game (next to the catch-a-ride and school bus). Now go to the house next to the bullet. On the house there are numerous arrows pointing to a box with a money symbol on it. After depositing (and watching the trophy unlock), you can press the button then "quit game". When you load back up, you will both have your money back and be back at T-Bone Junction. Credit to Xzeno for the video:
https://www.youtube.com/watch?v=qA5Kq2UDFfo