National Park Service
➤ National Park Service 现有 2020年美国国家公园免费入园日期公布，优胜美地，大峡谷等免费游览。
➤1月20日：马丁路德金生日
➤4月18日：国家公园周
➤8月25日：国家公园管理局生日
➤9月26日：国家公共土地日
➤11月11日：老兵节
➤本次活动并不包括所有国家公园，参与公园具体列表请参照文末。
长周末
一次性免费打卡
三家世界级博物馆
芝加哥三大世界级博物馆免费参观啦~这三家博物馆相互比邻，地理位置优越，在当地被称为博物馆中心（Museum Center）。伊州居民只需要凭借身份证就能免费进入。
水族馆
周四，1月16号持续至20号免费。
周四、周五开门时间：9AM-5PM，
周六、周日：9AM-5PM，
周一：9AM-9PM（马丁路德金节日时间）。
免费日博物馆经常都是大排长龙，建议民众网上提前购买，节省排队时间，但提前购买需要支付$3元手续费。
天文馆
周一（1月20号）至周三（1月22号），三天免费日。
开馆时间：9AM-4PM
富地博物馆
1月20号、22号和29号提供免费日。
开馆时间：9AM-5PM
长周末
国家公园免费游
国家公园作为美国的最重要的宝藏，每一天都吸引着全世界各地的游客。为了鼓励更多的现代人，放下手机，电脑，走进自然，呼吸新鲜空气，国家公园管理局每年会公布当年的免费入园公园和日期。黄石公园、大提顿国家公园、羚羊谷、大峡谷、优胜美地、死亡谷、奥林匹克国家公园等著名旅行胜地都囊括在内！码住这些日期，旅行提前计划！
图片来自于@Unsplash，版权属于原作者
同时很多名人故居和知名场所也会被列入国家公园的范畴内，这次的免费获得就有比如在新泽西州的爱迪生故居及实验室，纽约的富兰克林洛克菲勒故居已经北卡的莱特兄弟纪念公园等。
图片来自于@nationalparkservice 官方ins，版权属于原作者
国家公园展现了自然伟大，也见证了人类发展历史。趁着这次免费活动，和朋友一起出游增进友谊、带小朋友走进自然学习知识，当然也可以是净化人心的独自出游。忙碌的2020，提前规划个假期，去国家公园玩哦！
图片来自于@nationalparkservice INS，版权属于原作者
当然，免费入园的时间不适合你，那也可以选择在途风网，路路行找到大量的国家公园旅游折扣，有着丰富的路线规划经验和多元的路线选择。保证品质的同时，还给予用户最大的实惠和折扣，而且他们还能帮你订到黄石里需要提前一年才能订到的网红小木屋哟！
参与公园具体列表在这里：
Alaska
Denali National Park & Preserve
Arizona
Glen Canyon National Recreation Area
Grand Canyon National Park
Lake Mead National Recreation Area
Montezuma Castle National Monument
Organ Pipe Cactus National Monument
Petrified Forest National Park
Pipe Spring National Monument
Saguaro National Park
Sunset Crater Volcano National Monument
Tonto National Monument
Tumacácori National Historical Park
Tuzigoot National Monument
Walnut Canyon National Monument
Wupatki National Monument

Arkansas
Fort Smith National Historic Site
Pea Ridge National Military Park

California
Cabrillo National Monument
Death Valley National Park
Joshua Tree National Park
Lassen Volcanic National Park
Lava Beds National Monument
Muir Woods National Monument
Pinnacles National Park
San Francisco Maritime National Historical Park
Sequoia & Kings Canyon National Parks
Whiskeytown National Recreation Area
Yosemite National Park

Colorado
Black Canyon of the Gunnison National Park
Colorado National Monument
Dinosaur National Monument
Florissant Fossil Beds National Monument
Great Sand Dunes National Park & Preserve
Hovenweep National Monument
Mesa Verde National Park
Rocky Mountain National Park

Florida
Canaveral National Seashore
Castillo de San Marcos National Monument
Dry Tortugas National Park
Everglades National Park
Gulf Islands National Seashore

Georgia
Chattahoochee River National Recreation Area
Chickamauga and Chattanooga National Military Park
Cumberland Island National Seashore
Fort Pulaski National Monument
Kennesaw Mountain National Battlefield Park

Hawai'i
Haleakalā National Park
Hawai'i Volcanoes National Park
Pu'uhonua o Hōnaunau National Historical Park

Idaho
Craters of the Moon National Monument & Preserve
Yellowstone National Park

Maine
Acadia National Park

Maryland
Antietam National Battlefield
Assateague Island National Seashore
Chesapeake and Ohio Canal National Historical Park
Fort McHenry National Monument and Historic Shrine
Fort Washington Park
Harpers Ferry National Historical Park

Massachusetts
Adams National Historical Park
Cape Cod National Seashore

Michigan
Isle Royale National Park
Sleeping Bear Dunes National Lakeshore

Minnesota
Pipestone National Monument

Mississippi
Gulf Islands National Seashore
Vicksburg National Military Park

Missouri
Gateway Arch National Park (formerly Jefferson National Expansion Memorial)
Wilson's Creek National Battlefield

Montana
Glacier National Park
Little Bighorn Battlefield National Monument
Yellowstone National Park

Nevada
Death Valley National Park
Lake Mead National Recreation Area

New Hampshire
Saint-Gaudens National Historical Park

New Jersey
Thomas Edison National Historical Park

New Mexico
Bandelier National Monument
Capulin Volcano National Monument
Carlsbad Caverns National Park
Chaco Culture National Historical Park
Valles Caldera National Preserve
White Sands National Monument

New York
Eleanor Roosevelt National Historic Site
Home of Franklin D. Roosevelt National Historic Site
Sagamore Hill National Historic Site
Vanderbilt Mansion National Historic Site

North Carolina
Wright Brothers National Memorial

North Dakota
Theodore Roosevelt National Park

Ohio
James A. Garfield National Historic Site
Perry's Victory & International Peace Memorial

Oklahoma
Fort Smith National Historic Site

Oregon
Crater Lake National Park
Lewis and Clark National Historical Park 
Puerto Rico
San Juan National Historic Site

South Carolina
Fort Sumter and Fort Moultrie National Historical Park

South Dakota
Badlands National Park
Tennessee
Chickamauga and Chattanooga National Military Park

Texas
Big Bend National Park
Fort Davis National Historic Site
Guadalupe Mountains National Park
Padre Island National Seashore

Utah
Arches National Park
Bryce Canyon National Park
Canyonlands National Park
Capitol Reef National Park
Cedar Breaks National Monument
Dinosaur National Monument
Glen Canyon National Recreation Area
Golden Spike National Historical Park
Hovenweep National Monument
Natural Bridges National Monument
Zion National Park

Virgin Islands
Christiansted National Historic Site

Virginia
Assateague Island National Seashore
Colonial National Historical Park
George Washington Memorial Parkway's Great Falls Park
Harpers Ferry National Historical Park
Prince William Forest Park
Shenandoah National Park

Washington
Fort Vancouver National Historic Site
Lewis and Clark National Historical Park
Mount Rainier National Park
Olympic National Park

West Virginia
Harpers Ferry National Historical Park

Wyoming
Devils Tower National Monument
Grand Teton National Park
Yellowstone National Park
 编辑：Lily
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