Shinjuku's Kabukicho red-light district transforms after dark into a spectacle of neon-lit alleyways. The experience is defined by its visual energy, from the looming Godzilla head to the blinking signs of robot-themed restaurants. While not officially part of the district, the nearby lanes of Golden Gai and Omoide Yokocho offer a contrasting, intimate atmosphere with their tiny, traditional bars and eateries. A relatively new addition to the neighbourhood, Thermae-Yu is a six-storey onsen. The complex uses natural hot spring water sourced daily from Shizuoka. With facilities open for 22 hours every day, it functions as a popular overnight refuge for those who have missed the last train, offering a place to rest until the city stirs again at dawn.

Allard Pierson Museum narrates stories of ancient civilisations via informative displays which include artefacts from the Great Roman Empire, Ancient Egypt, Ancient Greece, Etruria, and Near East. This archaeological museum is sponsored by the University of Amsterdam.

The only active volcano in Continental Europe, Mount Vesuvius is a popular destination for excursions, and offers a stunning panorama over the Naples bay, as well as a thrilling opportunity to look inside its crater. Infamous because it destroyed Pompeii 2,000 years ago, Vesuvius is now carefully controlled by geologists. An interesting choice can be visiting it in the morning — it's only 20 minutes away from Naples — and then heading to the Pompeii archaeological site in the afternoon.