Lotte Tower

Above the Lotte luxury department store in Hanoi, there is a spectacular view of the capital from the 65th floor. In the evening, you can admire thousands of lights and it gives you a pretty creepy feeling when you walk on the glass floor and see the streets and cars below you. Since it costs about 10€ to enter, it's not crowded up there. An elevator takes you up the 65 floors so fast that you can't believe it. Once you reach the top, you can take a walk and enjoy the huge city with a 360-degree view. Before or after that, you can also visit the department store, even just to look around. There are also many good restaurants there, such as Thai, Korean, or of course Vietnamese.