45 days in United States Itinerary

Steeped in cultural and historical heritage, Philadelphia is known as the birthplace of U.S.

Venture out of the city with trips to Auburn Heights Preserve (in Yorklyn), Winterthur Museum, Garden & Library (in Winterthur) and Longwood Gardens (in Kennett Square). There's much more to do: walk around Wissahickon Valley Park, explore the world behind art at Philadelphia Museum of Art, get your game on at Bury The Hatchet Cherry Hill - Axe Throwing, and ponder the world of politics at Independence Hall.

To see more things to do, traveler tips, photos, and more tourist information, use the Philadelphia trip maker tool .

Use the Route module to see travel options from your home to Philadelphia. In December in Philadelphia, expect temperatures between 48°F during the day and 35°F at night. Wrap up your sightseeing on the 31st (Tue) to allow time to take a train to New York City.

Writer Pearl Buck once called New York City “a place apart,” and this giant urban center remains unlike any other in the world.

New York City is known for museums, nightlife, shopping, historic sites, and parks. Your plan includes some of its best attractions: stroll around Central Park, pause for some photo ops at Statue of Liberty National Monument, make a trip to Grand Central Terminal, and wander the streets of Times Square.

To see maps, more things to do, traveler tips, and other tourist information, read our New York City journey maker app .

You can take a train from Philadelphia to New York City in 2 hours. Alternatively, you can drive; or take a bus. Expect a daytime high around 48°F in December, and nighttime lows around 36°F. Wrap up your sightseeing on the 12th (Sun) early enough to travel to Niagara Falls.

The city of Niagara Falls houses the U.S.

Get out of town with these interesting Niagara Falls side-trips: 12 Gates Brewing Company (in Williamsville), Fenton History Center (in Jamestown) and Our Lady of Victory Basilica (in Lackawanna). And it doesn't end there: explore the fascinating underground world of Cave of the Winds, get curious at Niagara Aerospace Museum, tour the pleasant surroundings at Cockaigne Ski Area, and don't miss a visit to Schoellkopf Power Station.

For maps, ratings, where to stay, and more tourist information, read our Niagara Falls journey planning tool .

Traveling by combination of flight and bus from New York City to Niagara Falls takes 5.5 hours. Alternatively, you can do a combination of bus and flight; or drive. In January, Niagara Falls is slightly colder than New York City - with highs of 32°F and lows of 18°F. Wrap up your sightseeing on the 23rd (Thu) early enough to travel to Washington DC.

The capital of the United States, the District of Columbia contains the lion's share of the country's most treasured monuments, memorials, and public museums.

Venture out of the city with trips to Baltimore (Mustang Alleys, Sagamore Spirit Distillery, & more), Gari Melchers Home and Studio at Belmont (in Falmouth) and National Museum of the Marine Corps (in Triangle). There's lots more to do: admire the masterpieces at National Gallery of Art, get a sense of history and politics at The Pentagon, get engrossed in the history at United States Holocaust Memorial Museum, and appreciate the history behind Vietnam Veterans Memorial.

For where to stay, other places to visit, reviews, and tourist information, read Washington DC tour planner.

Getting from Niagara Falls to Washington DC by combination of bus and flight takes about 4.5 hours. Other options: do a combination of bus, flight, and train; or drive. Traveling from Niagara Falls in January, expect Washington DC to be somewhat warmer, temps between 44°F and 29°F. Finish your sightseeing early on the 3rd (Mon) so you can take a train back home.