Philadelphia,new York, Washington Dc, Buffalo

Day 1: Philadelphia

• Morning: Arrive in Philadelphia and check into your accommodation. Start your day with a delicious vegan breakfast at a local cafe like "Vedge" or "HipCityVeg."
• Mid-morning: Visit the Liberty Bell and Independence Hall to learn about the history of the city.
• Lunch: Enjoy a plant-based meal at "V Street" or "Charlie was a sinner."
• Afternoon: Explore the Philadelphia Museum of Art and run up the iconic "Rocky Steps."
• Evening: Stroll through Rittenhouse Square and have dinner at "V Street" or "Bar Bombón."

Day 2: New York City

• Morning: Take a train to New York City and check into your accommodation. Start your day with a vegan breakfast at "Blossom" or "By Chloe."
• Mid-morning: Visit Central Park and take a leisurely walk or rent a bike to explore the park.
• Lunch: Enjoy a vegan meal at "Avant Garden" or "Candle 79."
• Afternoon: Visit the Museum of Modern Art or explore the vibrant neighborhoods of SoHo and Greenwich Village.
• Evening: Have dinner at a vegan restaurant like "Peacefood Cafe" or "Jajaja Plantas Mexicana."

Day 3: Washington D.C.

• Morning: Take a train to Washington D.C. and check into your accommodation. Start your day with a vegan breakfast at "Fare Well" or "NuVegan Cafe."
• Mid-morning: Visit the National Mall and see iconic landmarks like the Lincoln Memorial and the Washington Monument.
• Lunch: Enjoy a plant-based meal at "Shouk" or "Busboys and Poets."
• Afternoon: Explore the Smithsonian museums or take a tour of the U.S. Capitol Building.
• Evening: Have dinner at a vegan-friendly restaurant like "Equinox" or "Elizabeth's Gone Raw."

Day 4: Buffalo

• Morning: Take a flight to Buffalo and check into your accommodation. Start your day with a vegan breakfast at "Root & Bloom" or "Merge."
• Mid-morning: Visit the Buffalo and Erie County Botanical Gardens for a peaceful start to your day.
• Lunch: Enjoy a vegan meal at "Grindhaus Cafe" or "Sun Restaurant."
• Afternoon: Explore the Albright-Knox Art Gallery or take a walk along the waterfront at Canalside.
• Evening: Have dinner at a vegan-friendly restaurant like "Lloyd Taco Factory" or "Amy's Place."

I hope this itinerary gives you a good balance of sightseeing, delicious vegan food, and relaxation during your trip to these cities! Let me know if you need any more recommendations or assistance. Safe travels!