While "most visited" can be measured in many ways, the Grand Bazaar in Istanbul, Turkey, consistently tops the list as one of the most visited tourist attractions globally, often reporting upwards of 90 million annual visitors. This historic marketplace, which has been a center of trade since 1455, features over 4,000 shops across 61 covered streets. However, if we look at specific monuments, the Eiffel Tower in Paris and the Colosseum in Rome are among the most visited "paid" attractions. In the United States, Times Square in New York City is frequently cited as the most visited "district," attracting roughly 50 million people a year who come to see the neon lights and Broadway theaters. It is important to note that "attraction" is a broad term; some data sets prioritize religious sites like the Mecca's Masjid al-Haram, while others focus on amusement parks like Magic Kingdom at Walt Disney World. Regardless of the metric, Istanbul, Paris, and New York remain the primary global hubs for massive tourist congregation due to their unique blends of history, culture, and infrastructure.