Airport

• Baltimore-Washington International Airport
• Dulles International Airport
• Montgomery County Airpark

Art gallery

• Corcoran Gallery of Art
• Mexican Cultural Institute
• National Museum of American Art
• National Portrait Gallery
• Walters Art Gallery

Bakery

• Anderson Bakery
• Bagel Place

Bank

• Sovran Bank

Boat ride

• Baltimore Harbor

Building supplies store

• Hechinger's

Business

• Top of the World Trade Center
• White Mountain Creamery

Courthouse

• Montgomery County Court House

Embassy

• Embassy of Ghana
• Embassy of Japan - Japanese Information and Culture Center

Farm

• Amish Farm and House
• Amish Homestead
• Butler's Orchard
• Claude Moore Colonial Farm at Turkey Run
• Frying Pan Farm Park
• Hard Bargain Farm
• Homestead Farm
• National Colonial Farm: Ecosystem Farm
• Oxon Hill Children's Farm
• Potomac Vegetable Farm
• Sotterley Plantation

Farm Museum

• Carroll County Farm Museum

Fire Department

• Rockville Fire Department

Fishery

• Three Spring Fisheries

Garden

• Brookside Gardens
• National Arboretum
• US Botanic Garden Conservatory

Government building

• Bureau of Engraving and Printing
• Maryland State House
• US Capitol

Grocery

• Giant Food, Inc.
• Safeway Briggs-Chaney Plaza

Historic house

• 1840 House
• Anderson House
• Beall-Dawson House and Stonestreet Medical Museum
• Carlyle House
• Carroll Mansion
• Clara Barton House
• Decatur House Museum
• Dumbarton House
• Frederick Douglass National Historic Site
• Gunston Hall Plantation
• Hager House and Museum
• Kennedy House
• Mt. Vernon
• Old Stone House
• Star Spangled Banner Flag House

• Sotterley Plantation
• White House
• William Paca House and Garden
• Woodlawn Plantation

Historic park

• Fort McHenry National Monument
• Independence National Historical Park
• Jamestown National Historic Park
• Jamestown Settlement Park
• Yorktown Colonial National Historical Park

Hospital

• Shady Grove Adventist Hospital
• Washington Adventist Hospital

Library

• Library of Congress

Mill

• Colvin Run Mill
• Pierce Mill

Museum and airport

• College Park Airport and Museum

Nature center

• Brookside Nature Center
• Lathrop E. Smith Environmental Education Center
• Locust Grove Nature Center
• Meadowside Nature Center
• National Wildlife Federation
• Rock Creek Nature Center

Museum

• Arthur M. Sackler Gallery
• B & O Railroad Museum
• Babe Ruth Museum
• Baltimore City Life Museums
• Baltimore Museum of Industry
• Baltimore Public Works Museum
• Banneker-Douglass Museum
• Bethune Museum-Archives
• Calvert Marine Museum
• Candy Americana Museum
• Capital Children's Museum
• Center for Urban Archaeology
• Chesapeake Bay Maritime Museum
• Fire Museum of Maryland
• Freer Gallery of Art
• Gadsby's Tavern Museum
• Greenbelt Museum
• Lyceum
• Maryland Historical Society Museum and Library
• National Air and Space Museum
• National Archives
• National Building Museum
• National Capital Trolley Museum
• National Geographic Society
• National Museum of African Art
• National Museum of American History
• National Museum of Natural History
• National Society of Daughters of American Revolution
• Peale Museum
• Phillip's Lancaster County Swiss Cheese
• Railroad Museum of Pennsylvania
• Railroad Station Museum
• Rose Hill Manor Park and Children's Museum
• Sandy Spring Museum - Tall Timbers
• Textile Museum, The
• Washington Dolls' House and Toy Museum
• Wax Museum of Lancaster County Museum
• Yorktown Victory Center

Park

• Black Hill Regional Park
• C & O Canal Historical Park (lower canal)
• C & O Canal Historical Park (upper canal)
• Fort Frederick State Park
• Patuxent River Park
• Seneca Creek State Park

Petting Farm

• Green Meadow Farm

Post Office

• Gaithersburg Post Office

Recycling Center

• Montgomery County Recycling Center

Rescue Squad

• Bethesda Chevy-Chase Rescue Squad
• Wheaton Rescue Squad

Research center

• Smithsonian Environmental Research Center
• USDA Agricultural Research Center, National Visitor Center

Restaurant

• Benihana of Tokyo
• Charrito Restaurant
• Chi-Chi's Mexican Restaurant
• Ichibin Restaurant

School

• Seneca Schoolhouse
• US Naval Academy
• Weavertown One-Room Schoolhouse

Science center

• Maryland Science Center

Ship

• Baltimore Maritime Museum
• USS Constellation

Solid waste transfer center

• Montgomery County Transfer Station

Train

• Strasburg Railroad Company

Veterinary Hospital

• North Rockville Veterinary Hospital

Visitor Center

• Goddard Space Flight Center

Walking tour

• Audubon Naturalist Society - Woodend
• Colonial Williamsburg
• Doorways to Old Virginia (A tour company)
• Frederick Visitor's Center
• Harpers Ferry National Historical Park
• Historic St. Mary's City
• Sotterley Plantation
• Three Centuries Tours of Annapolis (A Tour Company)

Warehouse / Production Facility

• MCPS Food and Nutrition Services Center

Water treatment site

• City of Rockville Treatment Plant

Zoo

• National Zoological Park