"Parisian since 1889, now I am sparkling on Twitter!" said one of the first tweets, in both English and French, on the official account of the Eiffel Tower.
"Welcome @LaTourEiffel," tweeted the Taj Mahal, one of the world's wonders, built in 1632 by the Mughal emperor Shah Jahan to house the tomb of his wife, Mumtaz Mahal.
"Thanks a lot @TajMahal," Eiffel Tower tweeted back.
The 1,063 feet-high tower nicknamed La Grande Dame by its creator Gustave Eiffel attracts more than seven million visitors from across the globe each year.
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Its arrival under the username @LaTourEiffel was quickly hailed by direct tweets from the official accounts of other world-renowned monuments, the 'Telegraph' reported.
"Welcome to Twitter, my sister," said a tweet by the Statue of Liberty, which was designed by a French sculptor and built by Eiffel before being shipped off to the US as a gift from the people of France in the late 19th century.
Along with the Taj Mahal, New York's Empire State Building also welcomed the tall Paris tower to the world of microblogging.
The administrators of the Eiffel Tower said they had decided to open the Twitter account to provide news about the Tower, historical facts as well as practical information.