Did you know that much of modern-day London is built on reclaimed marshland? In Roman times the Thames flowed through vast wetlands—possibly five times wider than it is today. London, which began as the small Roman settlement of Londinium, expanded rapidly during the Middle Ages, driven largely by farmers reclaiming marshes, building embankments, and, in some cases, property owners pushing into the river for coveted waterfront land. Yet, amidst the sprawling urban jungle, there exists a peaceful haven—a nature reserve that offers a tranquil escape from the hustle and bustle. Welcome to the London Wetland Centre.

Many visitors to London like to see the city from on high and several attractions give them the opportunity to do so. The London Eye and the viewing platform at The Shard are two of the capital’s most popular attractions, while One New Change and the Sky Garden attract people who do not wish to pay an entrance fee or wait in line to look at London from high up. Other towers, such as Arcelor Mittal Orbit in the Olympic Park and The Monument to the Great Fire, may not attract so many visitors but are important parts of London’s skyline.