If your trip to Hanoi is all booked but your travel itinerary is a little on the empty side, let us give you a helping hand.Experience the best that this place has to offer by adding Ho Chi Minh Mausoleum and Temple of Literature to your schedule. If you have some spare time, take a look at Thang Long Water Puppet Theatre and Hoan Kiem Lake too.Plan a stop at Hanoi Opera House. It's one sight you'll usually find on many travelers' must-do lists. If you still have some space on your schedule, Hanoi Old City Gate and St. Joseph's Cathedral will keep you occupied too.