Smithsonian National Museum of Natural History

The Smithsonian National Museum of Natural History, located on the National Mall in Washington, D.C., is dedicated to understanding the natural world and our place in it. With over 148 million specimens, it offers extensive exhibitions and educational programs that showcase Earth’s history and biodiversity. Visitors can explore permanent exhibits like the David H. Koch Hall of Fossils—Deep Time and the Hall of Human Origins, as well as temporary exhibitions covering diverse topics. Admission is free, and the museum is open daily from 10 a.m. to 5:30 p.m., except December 25. For more information, visit their official website.

Planning your visit

The Smithsonian National Museum of Natural History is free, open every day but Christmas, and holds around 148 million specimens — the largest natural history collection in the world, of which the public sees a tiny fraction. The David H. Koch Hall of Fossils covering deep time is the centrepiece, rebuilt and reopened after a five-year renovation, tracing life from the earliest organisms through the dinosaurs to the present with a genuine argument about extinction and climate rather than a parade of skeletons. The Hall of Human Origins, the Hope Diamond in the gem hall, the live insect zoo and the ocean hall with its suspended right whale fill out a building that comfortably absorbs a full day.

Free admission and a National Mall location mean crowds, particularly on weekends and through the spring school-trip season. The mammal and dinosaur halls bottleneck first. There is no ticket to skip, so the practical lever is timing — early on a weekday is markedly calmer — and knowing what you want to see.

Since admission costs nothing, the bookable options here are expertise rather than access. Formats include private guided tours, semi-private tours capped at around eight people, standard guided tours, and family-specific tours structured around the dinosaurs and gems rather than working hall by hall. Several combine this museum with the National Museum of American History next door, which works well precisely because both are free and adjacent — on the Mall the real constraints are walking distance and stamina, not entry. Current times are listed below.