| Country | United Kingdom |
| Population | approx. 9 million (city), 14 million (metropolitan area) |
| Language | English |
| Currency | British Pound Sterling (£) — NOT Euro! |
| Time Zone | GMT (UTC+0) / BST (UTC+1) in summer — 1 hour behind Germany |
| Electricity | 230V, Type G — Adapter required! |
| Drinking Water | Tap water drinkable everywhere |
| Telephone Code | +44 (London: 020) |
| Visa | Since Brexit: ID card is NO longer sufficient, passport required. No visa for stays up to 6 months. |
| Left-Hand Traffic | Yes — also as a pedestrian, watch out at zebra crossings! ("Look right" is written on the ground) |
| Area | 1,572 km² — London is huge |