Tower bridge is one of London's most striking attractions that you shouldn't miss when____（visit）the capital. This extremely attractive and impressive piece of Victorian architecture dates back to the late 1880s, and until the mid -1970s the main bridge____ (operate) by a steam engine.

    Today tower bridge is a splendid landmark typical of London, surrounded by cafes and bars____ tourists and locals alike can sit and enjoy the ____ (beauty ) bridge , which

    looks like two small castles hovering over the Thames, just like something out of a fairy tale.

    It is free to admire Tower Bridge and walk on it at any time; it's striking to look at during the day and magical when____ (light ) up at night, so don't miss out on this wonderful scene !

    If you would like____(step) inside the towers of the famous bridge , you can book Tower Bridge Exhibition tickets. During the exhibition , you can visit the famed engine rooms and impressive towers and find____ how the bridge came into____(exist) through the digital displays and animations(动画片). You can also pay ____visit to the glass room of Tower Bridge on the high-level walkways. There ____ (be) even yoga classes available on the glass floor of Tower Bridge.