Where: London
What to see: Former palace, fort, prison, and zoo. Visitors can see the Yeoman Warders (Beefeaters), the famous ravens, and the Crown Jewels.
Where: London, over the River Thames
What to see: High-level walkways with views of the city, Victorian engine rooms. The bridge can open to let ships pass under it.
Where: London, at the Palace of Westminster
What to see: The Great Bell (Big Ben) and the clock mechanism. Visitors can climb 334 stone steps to the top.
Where: South Bank of the River Thames, opposite the Houses of Parliament, London
What to see: A giant Ferris wheel offering panoramic views of London. A ride takes you up to 135 meters and lasts 30 minutes.
Where: London, inside a former power station
What to see: Modern art gallery with interactive exhibits, multimedia presentations, games, films, and books about art.
Where: London
What to see: A large Gothic church where English kings and queens are crowned, married, and buried. Tombs of famous figures like Henry III, Isaac Newton, and Charles Darwin. Also has a museum.