Today marks an event that occurs only twice a year. In just five minutes, the sun will set behind the peak of Japan’s most well-known volcano, Mount Fuji, creating a phenomenon known as ‘Diamond Fuji.’ This rare event happens when the sun aligns perfectly with the summit of Mount Fuji during both sunrise and sunset. I’m not quite sure what to expect, other than the enchanting sight of diamonds.

I eagerly wait amongst the crowds of people gathered at the windows along the full length of the south side of the building. As the sun quietly begins its descent, a collective sense of disappointment fills the air.

Today has been relatively clear in terms of the sky, but the air above Mount Fuji is filled with clouds, making it challenging to discern even the slightest outline of the mountain. No diamonds today, just a rather attractive sunset hanging above the miniature buildings that compose the endless Tokyo skyline. I can’t complain, though; I am witnessing a fantastic sunset. The sky looks amazing as it becomes illuminated by the setting sun.

I wait around for a while amongst other photographers and Japanese people making peace signs for their ‘sunset selfies.’ In one hour, the sky will be dark, so to make the most of my ¥620 ticket, I decide to linger. The observatory provides a fantastic vantage point for observing Tokyo, offering romantic and exotically beautiful views. The building remains open for night viewing, and my plan now is to spend some time at 251 metres, hoping to capture a few shots of Tokyo illuminated at night.

The night sets in, and I snap a few photographs before taking a leisurely stroll around the observatory. A vending machine catches my eye, offering an inexpensive blueberry cheesecake cone that I can’t resist. Nearby, a small cafe named ‘Air Ship’ sells food that, frankly, looks terrible. There’s also a small art gallery, a gift shop, and a place where professional artists draw caricatures—typical money-spinning attractions. Oddly, there are several small heart rate monitoring machines here, each costing ¥100. The idea of coming all this way just to check one’s heart rate seems beyond me.

After my exploration, I head back down the oddly named ‘Shining Elevator.’ As the lift descends at six hundred metres a minute, I can’t help but half-expect Jack Nicholson to burst through the door at any moment. However, the elevator surprises me by transforming into a planetarium, showcasing a light show that could be stars or underwater sparkles. The visuals are accompanied by relaxing space and ocean music.

At the bottom of the lift, a photograph mockingly displays the spectacle we all came here to view. Regrettably, what I witnessed was far from the captivating display promised by the poster – just another sunset.