Construction of the Tokyo Sky Tree, the world's tallest communications tower and second-highest building, has been completed two months late because of the quake and tsunami that struck Japan last March.
Tourist bosses in the country hope the 634-metre tower will be a big draw for foreign visitors, whose numbers have plummeted in the aftermath of the disaster and the nuclear crisis it sparked.
"The construction was originally scheduled to finish in December 2011 but was delayed due to a shortage of supplies after the disaster," said a spokeswoman for the operator, adding that the finished structure is sound.
"The building was officially handed over" from contractors to the operating firm on Wednesday afternoon, another spokeswoman said.
Construction of the tower, near the popular Asakusa traditional district on Tokyo's eastern side, began in July 2008.