This former oil-fired power station along the south bank of the Thames River in London was remade into a magnificent modern art museum in 2000 and is now one of the city’s top tourist attractions. The immense brick-facade building with a towering chimney — the former Bankside  Power Station — was originally designed by architect Sir Giles Gilbert Scott and constructed between 1947 and 1963. Slated for demolition after it closed in 1981, the station’s cavernous five-story turbine hall now serves as the museum’s impressive entrance space and the former boiler house is home to its galleries. A two-story glass penthouse constructed on top of the original roof features a café and stunning views of the city.