Lionel and Norman Wurts were prolific photographers of New York City, especially its architecture, during the first half of the 20th century. They founded the first architectural photography studios in the city in 1894, according to the Museum of the City of New York. For decades to come, they'd work with architects, engineers and rental agents to record the construction of landmarks like the Empire State Building as the city rapidly expanded. The Wurts also captured street scenes and incredible bird's-eye view photos. The Museum of City of New York has been cataloging 45,000 of their prints and negatives. More of their photos can be found at the museum's online Collections Portal.