The famed White Cliffs of Dover really are white. In 1991, we took the SeaCat from Dover to France. As soon at you get out of the docks you can look back and see the white cliffs. Here's Windows Live Local's Bird's eye view. Here's the wikipedia article.
Be sure and pan slightly to the southwest to see the docks for the channel ferries. Here's my picture taken off the back of the SeaCat.
Here's one of the channel ferries in the open sea.
The Basilica of the Sacre Coeur is overlooking Paris from the highest point in the city. Here's the wikipedia article and here's the wikipedia map. You'll see from the wikipedia map that there are a number of other areas of interest in the immediate vicinity including Place du tertre where you can always find artists.
In the middle of the Seine in Paris is a 1/3 scale model of the Statue of Liberty. You see this as you cruise the Seine on the Bateaux Mouche. Here's the wikipedia article on replicas of the Statue of Liberty.
While in Paris in 1991, we rode this ferris wheel in the Jardin des Tuileries. Well, actually I didn't. I read tour books while the rest of our party rode. I walked over to the booths nearby and had the best Belgian waffles I've ever had - Parisian "junk food!"