Aiguille du Midi
This 12,619-foot granite peak is topped with a needle-like observation tower, terrace, and restaurants. The world's highest cable car soars 12,000 feet up, almost to the top (an elevator completes the journey to the summit), providing positively staggering views of 15,700-foot Mont Blanc, Europe's loftiest peak. Be prepared for a lengthy wait, both going up and coming down—and wear warm clothing.