In the closing decades of the 19th century, New York underwent a profound physical and cultural transformation. Fueled by the wealth of the exploding financial and manufacturing sectors, the city rapidly evolved into a world-class metropolis. The bold ambitions of civic and business leaders, architects, and engineers of the era manifested in landmarks such as the vast Cathedral of St. John the Divine, the stately U.S. Custom House, the towering Municipal Building, and the original terminus of New York City’s first official subway line—the ornate City Hall stop. The sweeping interior spaces common to all of these structures, and hundreds of others, depended upon a venerable Mediterranean building technology adapted to contemporary American construction: arched tile ceilings—or vaults—that were not only self-supporting but could also bear the weight of floors or roofs above them. These vaults were designed and built by a single New York firm, founded by Spanish immigrant Rafael Guastavino (1842-1908) and later headed by his son Rafael Jr. (1872-1950). The Guastavinos’ patented system for building domes and vaults involved multiple layers of thin ceramic tiles bonded with quick-drying mortar. The resulting structures were not only exceptionally strong, but also lightweight, easy to build, and inherently beautiful, thanks to intricate patterns of exposed tile that formed finished, decorative surfaces. Guastavino vaults figured prominently in more than 1,000 projects across the nation, including 200 in Manhattan alone. During its 73-year history, the Guastavino Company helped build some of the most impressive interior spaces in America—veritable palaces for the people. This list based on MCNY's exhibition Palaces for the People, contains many of Guastavino's masterpieces in the five boroughs, both those that remain and those that have been lost to the wrecking ball.

If 1 CM Plaza typifies gossamer modernity, its neighbor represents the weighty historicism in vogue in the days before the Stock Market Crash of 1929. York & Sawyer turned to the fortified palaces of the Renaissance bankers of Florence for inspiration for this design. The fortress-like character is appropriate, as the Federal Reserve houses the world's largest concentration of gold bullion in its basement vaults. The elaborately wrought iron lamps flanking the main doorway on Liberty Street are the work of Samuel Yellin, the most noted artist of wrought iron of the twentieth century.

A walking tours through Lower Manhattan's skyscraper canyons and more than a century of high-rise construction. This walk focuses on the buildings around Broadway. This story is adapted from an exhibition at the Skycraper Museum. The original version can be seen here.

Federal Reserve Bank of New York The Federal Reserve Bank of New York, at 33 Liberty Street, was designated a New York City Landmark on December 21, 1965. "This enormous building occupies an entire city block; it is fourteen stories high and has five stories below grade. The remarkable stone exterior is reminiscent of an early Italian Renaissance palace with the horizontal and vertical joints of the stones deeply grooved (rusticated). The wrought iron window grilles and lanterns represent some of the finest craftsmanship of this Century. The importance of the Federal Reserve Building lies in its vast size, fortress-like appearance, fine proportions and in the superb quality of its construction. It set a precedent for many later banks which were influenced by its design." On April 10, 1918, the New York Federal Board of Directors gave the Real Estate Committee the go-ahead to negotiate for the Maiden Lane/Liberty Street/Nassau Street block. The committee acquired a total of 45,750 square feet at the total cost of $4,797,881.72. Inside the cornerstone, sealed in a copper container, is a time capsule holding documents including a roster of current employees, the New York Times and Herald from the morning, the 1921 Annual Report of the Bank, several Federal Reserve notes and a 1922 Peace Dollar. Completed in 1924, the New York Fed's main building at 33 Liberty Street in New York City is the largest bank structure in the world, filling almost the entire block bounded by Maiden Lane, Nassau, Liberty and William Streets. The building is composed of rusticated limestone and sandstone ashlar with deeply inset bronze windows and doors. The auditing and accounting departments moved to the eighth floor of the new building on May 29, 1924, beginning a process that would take several months with the last of the 2,500 employees settled in the new quarters by the end of October. The Fed's $3 billion in cash and securities was transferred from the Equitable Building to the recently opened main building on September 21st, 1924. After months of planning, the move was carried out on a quiet Sunday morning taking nearly 100 trips with a fleet of 37 armored cars, 150 NYPD officers, 50 detectives, 15 bomb squad members, 60 Secret Service agents & 40 Federal Reserve guards armed with Thompson automatic rifles. In September 1933, the New York Fed was finally able to purchase a small building on the east side of the 33 Liberty Street block (known as the Montauk Building) for $356,250. This was less than their original bid over a decade before. It now holds ownership of the complete block. The timing was propitious. Its trucking enclosure was taxed to capacity and the space the extension provided permitted trucks to drive in one way and out the other. On January 17th, 1936, the William Street Addition (on the site of the former Montauk Building) was completed. The addition took two years and cost $800,000.