Paris

Constructed in 1862 by the young architect Charles Garnier in the style of the Second Empire, the Opera was completed in 1875 in the first days of the Third Republic.
It was the largest opera house in the world. An interesting point is that this massive edifice is built on an underground river, which continues to fill a subterranean lake.
Legend has it that the Phantom of the Opera, created by Gaston Leroux, continues to carry out his hair-raising activities.
An absolute must: The great staircase, of which the first ten steps form a magnificent elevator cage, the ceiling frescos in vivid colors created by Marc Chagall in 1964 and the immense crystal chandelier weighing six tons.

The temple built as a monument to the Great Army was commissioned in 1806 by Napoleon from the architect Barthelemy Vignon after the construction of the church had been successively taken up by Contant d'Ivry in 1794 on the model of St Louis des Invalides, then by Couture on the model of the Pantheon, before being interrupted between 1790 and 1806.

Under the old régime, this was the place of popular celebrations, but it became associated with the bloody events of the Terror after Louis XVI, Danton, Robespierre and many others were executed here. In 1795 it was renamed Place de la Concorde in a sign of national reconciliation.
Louis-Philippe, wanting to bring royalists and republicans back together, chose a monument without any political significance in erecting the Obelisk of Luxor in the center of the square, presented as a gift by the Egyptian Viceroy Méhémet Ali.
After a two and a half year voyage from the banks of the Nile the granite monolith, whose ancient hieroglyphics were carved more than 3,000 years ago under Ramesis II, was erected in front of 200,000 spectators, on October 25, 1836.

In 1804 Napoleon 1st gave a magnificent reception here on the occasion of his marriage to Marie-Louise. From the end of the 19th century the gardens of the Champs-Elysées welcomed walkers who had come to enjoy the leisures offered by the Avenue that had become a showcase for progress. From the Bal Mabille to the Lido, from the Café des Ambassadeurs to Fouquet's, from the Panorama to the theaters walkers can discover the latest evolutions in technology, industry, automobiles or the cinema.