US tech firm Oculus has filed an application to receive a mandatory radio wave certification for its virtual reality headset in South Korea, an apparent move to release the VR device here soon.

At 555 meters tall (1,820 ft), the Lotte World Tower is the tallest tower in South Korea and fifth highest in the world, towering above the metropolis of 9.7 million people.

A British man climbs South Korea's tallest building, the 123-storey Lotte World Tower, without a rope before being forced to abandon the climb more than halfway up, in Seoul, South Korea on June 12.