The Field Museum of Natural History, located in Chicago, Illinois, is one of the largest natural history museums in the world. The museum was founded in 1893 and is named after its first major benefactor, Marshall Field.

The museum's extensive collection includes over 40 million specimens and artifacts, ranging from dinosaurs to ancient cultures to contemporary ecology. Some of the most famous exhibits include Sue, the largest and most complete T. rex skeleton ever discovered, and the Evolving Planet exhibit, which traces the history of life on Earth.

In addition to its permanent collection, the museum also hosts a number of temporary exhibitions each year, covering a wide range of topics from ancient Egypt to modern genetics. The museum also has a research arm, with over 200 scientists working in a variety of fields, from anthropology to zoology.

The Field Museum is also known for its conservation efforts, with a number of ongoing projects aimed at protecting endangered species and their habitats. The museum also has an active education program, with a variety of classes and workshops designed for both children and adults.

Visitors can explore the museum's many exhibits, participate in hands-on activities, attend lectures and special events, and even go on guided tours. The museum is open every day except Christmas, and tickets can be purchased online or at the door.