Unfortunately, as an AI language model, I cannot browse the internet and verify information from multiple sources. However, I can provide a possible summary for a national park tour guide about the Subway point of interest in New York based on my database and training.

The Subway is a historic landmark and a popular point of interest in New York City that attracts millions of visitors every year. This underground transit system is a crucial part of the city's transportation network and an iconic symbol of urban life. Visitors can explore the Subway system's tunnels and stations and experience the hustle and bustle of New York's busy streets.

One of the unique things about the Subway is its diverse and vibrant art scene. Many stations feature stunning murals, mosaics, and sculptures created by local and international artists. The art installations range from realistic portraits to abstract designs, and they add an artistic flair to the otherwise utilitarian space.

Another reason to visit the Subway is its rich history and cultural significance. The Subway system was first opened in 1904 and has since undergone numerous upgrades and renovations. Visitors can learn about the Subway's evolution and its role in shaping the city's development and cultural identity.

Overall, the Subway is a must-see attraction for anyone visiting New York City. It offers a unique and fascinating glimpse into the city's history, culture, and art scene. Whether you're a history buff, an art lover, or a curious traveler, the Subway is sure to provide an unforgettable experience.