Since 1923, when it moved to its current location, the Federal Reserve Bank of Cleveland has been an irreplaceable part of the city's skyline. Inside the hulking edifice is a historic national landmark, built in an adapted fortress-palace style of the Italian Renaissance. Hundreds of employees do their part to keep the nation's internal economy running as smoothly as possible. As the headquarters of the Fourth Federal Reserve District, the bank provides check processing (machines sort 90,000 checks per hour and more than two million every day), electronic payments (more than $50 billion processed daily), and currency distribution to banks and other financial institutions throughout the district, which includes Ohio and parts of Kentucky, Pennsylvania, and West Virginia. Tours are available, but reservations must be made in advance.