It seems that individual circles, for reasons unexplained, periodically lost their power and attractiveness and were replenished.
To get to the Arc de Triomphe's viewing platform, you have to climb 284 steps.
The chambers inside the pyramid of Cheops are covered with blocks of granite that weigh up to 80 tons.
The Empire State Building's electrical wiring length is 692 km, and the water pipes are 112 km.
During the German occupation of Paris, the elevators on the tower were disabled by cutting the cables and the tower was closed to tourists.
When the tower was commissioned on March 31, 1889, it was the tallest building in the world.
In 1284 the building work was again interrupted.
From the Piazza di Spagna branches the famous Via Margutta, one of the most magical corners of the Eternal City, made famous by William Wyler's "Roman Holiday" starring Audrey Hepburn and Gregory Peck.
The building works were not resumed until 1275.
To get to the top floor (102nd), you have to climb 1860 stairs.