The Tank is a 200,000-gallon shark tank aquarium. If you haven’t visited the Tank Pool at the Golden Nugget yet, you’re seriously missing out. Here are eight ways to enjoy downtown Las Vegas on a budget. While it’s true that you want to walk around the city with some cash in your pocket, there are still plenty of ways to have fun and relax in the entertainment capital of the world without breaking the bank. Vegas is often associated with gambling, shopping, fine dining, entertainment and that guy on the street corner who may or may not be Elvis.