Paris's most ornate and opulent bridge, arching gracefully across the Seine between the Grand Palais and Les Invalides. Built in Beaux-Arts style for the 1900 Exposition Universelle to celebrate the Franco-Russian alliance, it is named after Tsar Alexander III. The single-span steel bridge is adorned with four 17-metre pylons topped by gilded bronze statues of Pegasus, intricate Art Nouveau street lamps, cherubs, and river nymphs.
The symbol of Paris and the world's most visited paid attraction. Built for the 1889 World's Fair to Gustave Eiffel's design and meant to stand for 20 years, it became an icon: 330 metres, three levels, 70 km of views in clear weather. Climbing the stairs to the second floor is an experience of its own; lifts carry you to the top.
The Arc de Triomphe at Place Charles de Gaulle, commissioned by Napoleon after Austerlitz and completed in 1836. Beneath the vault lies the Tomb of the Unknown Soldier with its eternal flame; the walls list battles and 660 generals. The rooftop terrace has the best view of axial Paris, from the Louvre to La Défense.
If you have time left — worth it too.

The Palais du Luxembourg is a palace and park ensemble built in the 17th century for Marie de Medici.
A legendary cabaret at the foot of Montmartre hill, founded in 1889 by Joseph Oller and Charles Zidler. Famous for the iconic red windmill on its roof, it is the birthplace of the modern French cancan dance, immortalized by painter Henri de Toulouse-Lautrec. Today, visitors from across the globe gather here to enjoy the spectacular 'Féerie' revue, featuring acrobats, lavish sets, and dancers adorned with thousands of sequins and feathers.
The white basilica crowning Montmartre, built 1875–1914 from travertine that turns almost blinding in the rain. Inside is one of France's largest apse mosaics and perpetual adoration — prayer before the sacrament has continued unbroken since 1885. Narrow steps lead to the dome, and the parvis gives you all of Paris.