Washington, D.C.

Yes, photography is generally allowed in Smithsonian museums, but flash and tripods may be restricted in certain exhibits.

Respect the space by not climbing on monuments or littering. Quiet reflection is encouraged at memorials like the Vietnam Veterans Memorial.

It's illegal to block the sidewalk or ride scooters on sidewalks. Also, smoking is banned in many public areas.

Take advantage of free attractions like Smithsonian museums and the National Zoo. Use the Metro for affordable transportation.

Smart casual is typical, but upscale restaurants may require more formal attire. Avoid overly casual wear like flip-flops.

Yes, biking is popular with dedicated lanes and Capital Bikeshare stations. Helmets are recommended but not required for adults.

Try the half-smoke sausage at Ben's Chili Bowl or Ethiopian dishes in the U Street Corridor. Don't miss the city's famous cupcakes.

Use public transit, refill water bottles at public fountains, and support local businesses to reduce your environmental impact.

Arrive at least 30 minutes early for tours of the Capitol or White House due to security checks. Book tours in advance.

English is predominant, but a friendly and polite demeanor is appreciated. Avoid loud conversations in public transport.

Varies by country. Many nationalities can visit visa-free for up to 90 days under the Visa Waiver Program. Check with the U.S. Department of State.

U.S. Dollar (USD). Credit cards are widely accepted, but carry some cash for small vendors.

Yes, English is the primary language. Many tourist areas have multilingual signs and staff.

Yes, all Smithsonian museums in D.C. offer free admission.

From Reagan National (DCA), take the Metro. From Dulles (IAD), use the Silver Line Express Bus or Metro. From BWI, take the MARC train or Amtrak.

Yes, but you must request a tour through your embassy or Member of Congress well in advance. Public tours are limited.

The National Mall and many neighborhoods are very walkable. Use Metro for longer distances.

Tip 15-20% at restaurants, $1-2 per drink, and $1-2 per bag for porters.