The size of a cathedral, this church is one of the world’s architectural masterpieces, with a spire soaring an amazing 530 ft/161.53 m into the sky. Although construction began back in 1377, it was not finished until 1890. Then, it was the world’s tallest building; but this record lasted only until Philadelphia’s city hall was completed in 1901. But, it is still the tallest church in the world, the equivalent of 66 storys high!