The Royal Exchange in London, founded by Sir Thomas Gresham in the 16th century, is a historic commercial building that has been rebuilt twice due to fires. The current neoclassical structure was designed by Sir William Tite in the 1840s and features a central courtyard where merchants conducted business. With its Corinthian columns, pediment sculptures, and iconic Gresham Grasshopper weathervane, the Royal Exchange is now home to luxury shops and restaurants. It's also where royal proclamations are read out, making it a bustling hub of commerce and tradition in the heart of the city.