Yahoo Travel ran an article titled "What Not To Do In... "
Here are the things they recommend that you do NOT do in five major tourist cities.
In Los Angeles Don't...Bother with Venice or Santa Monica Beaches or Shell Out for Star Maps
In London Don't...Hop on a sightseeing bus or Visit Madame Tussauds
In Paris Don't...Spend all day at the Louvre or Musée d'Orsay or Seek out bohemian ambience on the Left Bank
In Las Vegas Don't...Use the Casino ATMs or Arrive at the Airport 30 Minutes Before Your Flight
In New York City Don't ... Take a twilight carriage ride in Central Park and Eat at a restaurant in Times Square
I'm not familiar with most of these things. I've been to LA, London and Las Vegas. I definitely agree that Venice beach is not worth the time. My wife and I went there and it was a total waste. Parking nearby is a giant hassle and very expensive to pay for. The beach itself is extremely over crowded with little useful attractions. The two items for Las Vegas are very true. Casino ATMs are very over priced and the Las Vegas airport can be one of the busiest and slowest to get through.