Viewpoints & Towers — Paris

Napoleon's 50-metre triumphal arch at the hub of twelve radiating avenues, honouring the armies of the Revolution and Empire, with France's Unknown Soldier buried beneath it.

Gustave Eiffel's 330-metre wrought-iron lattice tower, built for the 1889 World's Fair and meant to stand for just twenty years, is now the enduring symbol of Paris.

The white travertine basilica crowning Montmartre hill, begun in 1875 as national penance after France's defeat in the Franco-Prussian War, offers the city's finest free panorama.

The curved 1937 Palais de Chaillot and its terraced gardens face the Eiffel Tower directly across the Seine, offering what is widely considered the single best photograph of the tower in Paris.