Smithsonian National Museum of Natural History

If your idea of a good museum day includes a T. rex, the Hope Diamond, an enormous African elephant and enough fossils, animals and gems to fill several hours, the Smithsonian National Museum of Natural History makes an easy case for itself.

Admission is free, no timed ticket is normally required, and the museum can work for anything from a quick highlights stop to a half-day visit.

The harder part is deciding what to see first.

For most first-time visitors, three landmarks make a useful starting point: Henry the African bush elephant in the Rotunda, the Nation's T. rex in Deep Time, and the Hope Diamond upstairs in Gems & Minerals.

From there, the museum branches into oceans, mammals, human origins, fossils, geology, ancient Egypt and more.

For a first visit, 2–3 hours is a useful target.

That gives most visitors enough time to enjoy several major halls without turning the museum into an endurance event.

If you only have about an hour, a highlights visit is still possible.

If natural history is the main reason you're in Washington, a half day is easy to fill.

The complete Dino + Diamond Detour includes suggested routes for different visit lengths.

Visitor Fit

Who this museum suits—and what to expect.

Visitor Fit does not determine the Detour Score. It explains practical conditions and who may get the most from a visit.

This museum has several obvious wins for younger visitors: dinosaurs, mammals, ocean life, fossils and gems.

The building is also large.

For families, choosing the exhibits your children are most excited about can be more enjoyable than trying to complete every floor.

Strollers and small pushed wagons are permitted, elevators connect the public floors, and a family restroom is available off the Sant Ocean Hall on the First Floor.

Museum entrances and exits have stair-free access, exhibitions are wheelchair accessible, and elevators connect the public floors.

Accessible restrooms are available throughout the museum.

A limited number of manual wheelchairs may be borrowed free of charge on a first-come, first-served basis.

For visitors looking for a quieter museum experience, the Smithsonian recommends Monday through Wednesday or weekdays during September or February when possible.

There are two main museum cafés:

Ocean Terrace Café — First Floor

and

Atrium Café — Ground Floor

Outside food cannot be eaten inside the museum, although bottled water is permitted.

There is also seating throughout the museum and a Garden Lounge on the Second Floor.

Everyone goes through security screening.

The museum does not currently provide coat check, bag storage or lockers, so packing lightly makes the day easier.

Personal noncommercial photography is generally permitted unless otherwise posted, but selfie sticks, tripods and monopods are not allowed.

Public transportation is usually the simplest option.

Nearby Metro stations include:

Federal Triangle Archives/Navy Memorial Metro Center

The Smithsonian does not operate public parking facilities on the National Mall.