The iconic Eiffel Tower is on everyone's bucket list, day or night. The tallest structure in the city, it offers incomparable views, including a new perspective from the transparent floor on the first level. On the second level is Le Jules Vernes Restaurant with one Michelin star, serving lunch and dinner. A $2.99 official audio-guide app can be download before or on site. In September, rates go up: 7 Euros stairs to second level, 11 Euros elevator to second level, 17 Euros elevator to the top. Sitting or promenading in the park below is a pleasant diversion.