We recently found out the hard (and embarrassing) way that dogs are not allowed on Amtrak trains. To avoid future travel hiccups, we rounded up resources for traveling with a pet and pet-friendly places in DC and in other Apartment Therapy cities. Our search led us to find many dog-friendly DC spots including hotels and bars with Doggie Happy Hours...

Shown in the Photos:
• a dog checking out Franklin D. Roosevelt's dog in the Washington, DC memorial
• our dog Cassidy enjoying a lovely day on the Potomac River in Georgetown
• daschunds and people viewing art at The Torpedo Factory "All About Dogs" event
• a German Shepherd outside the Senate building from Bring Fido
• a cat staying at The Hotel Helix in Dupont Circle

Doggie Happy Hours in DC:
• Cantina Marina on the Southwest waterfront on Monday nights
• The Hotel Monaco Alexandria in Old Town on Tuesdays and Thursdays during the summer
• The Hotel Helix in Dupont Circle on Wednesday nights
• Union Pub in Capitol Hill on Saturday afternoons
• More dog-friendly happy hours from The Washingtonian

More Pet-Friendly Places in DC:
• Hotel Palomar: Pet Friendly Hotel in Arlington
• The Carlyle Suites Hotel in Dupont Circle
• Nature in the City: DC's Best Parks & Outdoor Spaces
• Click here and here for more dog-friendly attractions in DC

Resources for Traveling with Your Pet
• PetsWelcome.com: A Pet/Travel Resource
• Airborne Animals: Pet Shipping
• Best Tips For Traveling With Pets
• Pets on a Plane: Things to Know Before You Travel

Dog-Friendly Escapes in Other Cities:
• Five Stylish Pet-Friendly Escapes from AT San Francisco
• Dog Friendly Hotels from AT LA
• Good Questions: Dog-Friendly Long Island Beaches? from AT New York

Do you have a favorite pet-friend place in DC? What did we miss?