Acadia, Maine

American Samoa, American Samoa

Arches, Utah

Badlands, South Dakota

Big Bend, Texas

Biscayne, Florida

Black Canyon of the Gunnison, Colorado

Bryce Canyon, Utah

Canyonlands, Utah

Capitol Reef, Utah

Carlsbad Caverns, New Mexico

Channel Islands, California

Congaree, South Carolina

Crater Lake, Oregon

Cuyahoga Valley, Ohio

Death Valley, California/Nevada

Dry Tortugas, Florida

Everglades,  Florida

Gateway Arch, Missouri

Glacier, Montana

Glacier Bay, Alaska

Grand Canyon, Arizona

Grand Teton, Wyoming

Great Basin, Nevada

Great Sand Dunes, Colorado

Great Smoky Mountains, North Carolina/Tennessee

Guadalupe Mountains, Texas

Haleakala, Hawaii

Hawaii Volcanoes, Hawaii

Indiana Dunes, Indiana

Hot Springs, Arkansas

Isle Royale, Michigan

Joshua Tree, California

Katmai, Alaska

Kenai Fjords, Alaska

Kings Canyon, California

Lassen Volcanic, California

Mammoth Cave, Kentucky

Mesa Verde, Colorado

Mount Rainier, Washington

New River Gorge, West Virginia

North Cascades, Washington

Olympic, Washington

Petrified Forest, Arizona

Pinnacles, California

Redwood, California

Rocky Mountain, Colorado

Saguaro, Arizona

Sequoia, California

Shenandoah, Virginia

Theodore Roosevelt, North Dakota

Virgin Islands, United States Virgin Islands

Voyageurs, Minnesota

White Sands, New Mexico

Wind Cave, South Dakota

Wrangell – St. Elias, Alaska

Yellowstone, Wyoming/Montana/Idaho

Yosemite, California

Zion, Utah

Heaviest Living Organism on Earth, Pando (~6,600 Short Tons) Fishlake National Forest, UT

A colonal colony of a single male quaking aspen (Populus tremuloides) determined to be a single living organism by identical genetic markers and one massive underground root system.

Oldest Living Tree on Earth, Methuselah (4853 years old as of 2022), Ancient Bristlecone Pine Forest, White Mountains, CA

The Methuselah tree is on the Methueslah Trail somewhere near trail marker #17.

https://www.ltrr.arizona.edu/~sheppard/tour/BristleconePine1958-03.pdf

Oldest Creosote Bush on Earth (~11,700 years old), "King Clone", Mojave Desert, CA

Deepest Lake in the US (1,949 ft.), Crater Lake National Park, OR

The deepest lake on earth is Baikal in Siberia, Russia (5,369 ft.)

Largest Tree on Earth (52,508 cu ft), General Sherman Tree, Sequoia Nat. Park, CA

Tallest Tree on Earth (379.46 ft), Hyperion, Redwood National Park, CA

Lowest Point on Earth (1,391 ft. below sea level), Dead Sea shore, Isreal - West Bank - Jordan

Lowest Point in the US (282 ft. below sea level), Badwater Basin, CA

Hottest Place on Earth (134 degrees Fahrenheit, July 10, 1913), Furnace Creek Death Valley, CA

Southernmost Point in the US (18.9111°N, -155.681111°E), Ka Lae, HI

Northernmost Point in the US (71°23'20"N, 156°28'45"W), Point Barrow, AK

Southernmost Point in the Continental US (24.544701°N, 81.810333°W), Key West, FL

Northernmost Point in the Continental US (49.27N, 95.05W), Northwest Angle, MN

Northwesternmost point of the contiguous United States is Cape Flattery, WA

Longest Cave on Earth (405 mi), Mammoth Cave National Park, KY

First Nuclear Explosion on Earth (18.6 kilotons) July 16, 1945, Trinity Site, White Sands Missle Range, NM

The Oldest Tavern in the US (1795), The Bell in Hand Tavern, Boston, MA

Genoa Bar, Nevada's Oldest Thirst Parlor (1853), Genoa, NV

Nevada's Oldest Settlement, Genoa, NV

The Largest (40.23 carats) Diamond "Uncle Sam" found in the US, Murfreesboro, AK

The Worlds Largest (133,000 sq mi) Coral Reef, Great Barrier Reef, Hardy Reef, Australia

The Longest (13,170.70 mi) Man-Made Structure in the World, The Great Wall of China, Badaling, China

The Worlds Largest (16 ft.) Wooden Nickel, Iowa City, IA

The End of the Lewis & Clark Expedition, Seaside, OR

Oldest restaurant in Hollywood, Musso & Franks, Hollywood, CA

Minute Man National Historical Park, Concord, MA

Cabrillo National Monument, San Diego, CA

Pu'uhonua o Honaunau National Historic Park, Honaunau Bay, HI

Salem Maritime National Historic Site, Salem, MA

Cape Cod National Seashore, Cape Cod, MA

Klondike Gold Rush National Historical Park, Skagway, AK

Schoodic National Scenic Byway, Hancock, ME

Amboy Crater National Natural Landmark, Amboy, CA

Mojave National Preserve, Ludlow, CA

Muir Woods National Monument, Mill Valley, CA

Department of the Treasury Registered National Historic Landmark, Washington, DC

Fort McHenry National Monument and Historic Shine, Baltimore, MD

The National Mall and Memorial Parks, Washington, DC

Reef Shark, Club Med Columbus Isle, San Salvator, Bahamas

Columbus Discovered America: October 12, 1492, San Salvador, Bahamas

Five Lobsters, Club Med Turkoise, Providenciales, Turks and Caicos

Kaloko - Honokohau National Historic Park, Kona, HI

Scuba Diving, Kilua-Kona, Hawaii

Manzanar National Historic Site, Manzanar, CA

National Historic Trails: Pony Express Trail and California Trail, Genoa, NV

Eastern Sierrra Scenic Byway (southern end near Little Lake), SR395, CA

Anza-Borrego Desert State Park, Borrego Springs, CA

Mormon Station Historic State Monument, Genoa, NV

Statue of Liberty National Monument, Liberty Island, NY

Federal Reserve Bank of New York State Landmark, Wall Street, NY

The Heart of the Mojave, Mojave Desert near Amboy, CA

Red Rock Canyon National Conservation Area, Las Vegas, NV

Santa Rosa and San Jacinto Mountains National Monument, Palm Desert, CA

Paso Picacho Campground, Cuyamaca State Park, Julian, CA

Glen Canyon National Recreation Area, Wahweap, AZ

Grand Staircase-Escalante National Monument, US89, UT

Pipe Spring National Monument, US89, AZ

Meteor Crater, Winslow, AZ

Montezuma Castle National Monument, Verde Valley, AZ

Sonoran Desert National Monument, Gila Bend, AZ

Lake Chelan National Recreation Area, Stehekin, WA

E.C. Manning Provincial Park, British Columbia, Canada

Butchart Gardens, Victoria, British Columbia, Canada

Tuzigoot National Monument, Clarkdale, AZ

Hollywood Sign, Hollywood Hills, CA

Scenic Byway 12, Panguitch, UT

Colorado National Monument, Fruita, CO

Charlestown Navy Yard, Boston, MA

Bunker Hill Monument, Boston, MA

Salem Armory, Salem, MA

Walnut Canyon National Monument, Flagstaff, AZ

Chiricahua National Monument, Wilcox, AZ

Organ Pipe Cactus National Monument, Ajo, AZ

New Orleans Jazz National Historical Park, New Orleans, LA

Fort Moultrie, Fort Sumter National Monument, Charleston, SC

Jefferson National Expansion Memorial, St. Louis, MO

Crater of Diamonds State Park, Murfreesboro, AK
(we didn't find any diamonds)

Texas School Book Depository (where Lee Harvey Oswald shot president Kennedy), Dallas, TX

Torrey Pines State Beach, North Beach, San Diego, CA

Soggy Dollar Bar, Jost van Dyke Island, British Virgin Islands

Juan Bautista de Anza Trail, Anza, CA

Petroglyph National Monument, Albuquerque, NM

Grand ole Opry, Nashville, TN

Antietam National Battlefield, Sharpsburg, MD

Pancake Bay, Lake Superior Provincial Park, Ontario, Canada

Killarney Provincial Park, Ontario, Canada

Sleeping Giant Provincial Park, Ontario, Canada

Grand Portage National Monument, Grand Portage, MN

Devils Tower National Monument, Black Hills, WY

Minuteman Missle National Historic Site, Wall, SD

Mount Rushmore National Memorial, Keystone, SD

Custer State Park, Custer, SD

Independance Rock, Wyoming Highway 220, WY

National Historic Trails, Casper, WY

Oregon Trail, Wyoming Highway 220, WY

Ford's Theatre National Historic Site, Washington, DC

West Potomac Park, Washington, DC

Gettysburg National Military Park, Gettysburg, PA

Goblin Valley State Park, Green River, UT

Four Corners Monument, Teec Nos Pos, AZ

Valley of Fire State Park, Overton, NV

The Alamo, San Antonio, TX

San Franscisco Maritime National Historical Park, San Francisco, CA

Hearst San Simeon State Historical Monument, San Simeon, CA

Tallac Historic Estates, South Lake Tahoe, CA

Challenger 7 Memorial Park, Houston, TX

Bode State Historical Park, Bode, CA

Henry Cowell Redwoods State Park, Santa Cruz, CA

Pezzini Farms, Castroville, CA (Artichoke Capital of the World)

Pacific Crest Trail South of Desert View, Julian, CA

Butterfield Overland Mail Route, Blair Valley, CA

Tallgrass Prairie National Perserve, Flint Hills region, KS

Yuma Territerial Prison, Yuma, AZ

Santa Fe Trail, Santa Fe, NM

Old Spanish Trail, Santa Fe, NM

Lower Antelope Canyon, Paige, AZ

Horseshoe Bend Overlook, Paige, AZ

Verde Canyon Railroad, Clarkdale, AZ

Cadillac Ranch, Amarillo, TX

Wupatki National Monument, Flagstaff, NM

Jean Lafitte National Historic Park, New Orleans, LA

Alaska Railroad, Seward, AK

Iditarod National Historic Trail, Seward, AK

Alaskan State Flag, Seward, AK

The Empress Hotel, Victoria, British Columbia, Canada

The Big Texan Steak Ranch 72 oz. "Free" Steak, Amarillo, TX

Devils Postpile National Monument, Mammoth Mountain, CA

Red Rock Scenic Byway, Sedona, AZ

Bright Angel Trailhead, Grand Canyon National Park, AZ

Grove of the Titans, Redwood National Park, CA

Trees of Mystery, Klamath, CA

Pikes Place Market, Seattle, WA

Gum Wall, Pikes Place Market, Seattle, WA

Butch Cassidy's Boyhood Home, Panguitch, UT

Kodachrome Basin State Park, Cannonville, UT

Mo'Oheau Park, Hilo, HI