Fodor's Expert Review Tour Montparnasse

Paris's least regarded architectural eyesore is currently undergoing a major overhaul and will have a sparkling new facade with planted terraces and a renovated, ground-level shopping center by 2024. When it reopens, a quick elevator ride will whisk visitors to the top of one of continental Europe's tallest skyscrapers, where you can take in panoramic vistas of Paris from the glass-enclosed observation deck on the 56th floor. On a clear day, you can see for 40 km (25 miles). Built in 1973, the 680-foot building will also sport a rooftop restaurant as well as hotel rooms on the 42nd to 45th floors, from which one can enjoy some of the best views of Paris and beyond.