Osaka celebrated the 60th anniversary of the Tsutenkaku tower on Friday as the landmark regained its popularity in recent years with a growing number of foreign tourists drawn to the retro allure of the relatively short observation tower.

"I'm surprised to hear this tower has a 60-year history. It's tall and offers a great view," said Husna Hasan, a 21-year-old tourist from Malaysia, at the observation deck.

The operator of Tsutenkaku slashed the ¥700 entrance fee for adults to ¥210 as a special offer for the anniversary day. The discount price is a pun as "tsuten" sounds similar to "two-ten."