FAQ About London's parks
Contrary to popular belief, the answer is Richmond Park, not Hyde Park. Richmond Park is the largest of London's eight Royal Parks and is the biggest enclosed space in London. Richmond Park's royal connections go back a long way to Henry VIII, who was the first to call it Richmond, and before that, to Edward (1272-1307). During the plague in 1625, Charles I decamped from the claustrophobic infection center to the clean air of Richmond. Find out everything you need for a visit to Richmond Park on the Royal Parks website.
The longest bridge in London is one that you probably haven't heard of. The funny thing is that this bridge doesn't just win by a short head. It literally wins by a mile. The Queen Elizabeth II Bridge is crossing the Thames as part of the Dartford crossing to the east of the city.
If we limit ourselves to central London Bridges, then we get a more familiar winner. The iconic Tower Bridge is the champion at 65m.
The good thing about Tower Bridge is that it can actually climb the structure and walk between the two towers on the high-level walkways. And when you get there, you'll find a glass floor that lets you see down to the traffic and people on the bridge.