Places
US National Parks 28 / 62
Acadia
Maine
Visited April 2024
American Samoa
American Samoa
Arches
Utah
Visited October 2019
Badlands
South Dakota
Big Bend
Texas
Biscayne
Florida
Black Canyon of the Gunnison
Colorado
Visited July 2020
Bryce Canyon
Utah
Canyonlands
Utah
Visited October 2019
Capitol Reef
Utah
Visited July 2023
Carlsbad Caverns
New Mexico
Visited January 2024
Channel Islands
California
Visited September 2025
Congaree
South Carolina
Visited August 2017
Crater Lake
Oregon
Visited October 2016
Cuyahoga Valley
Ohio
Death Valley
California & Nevada
Visited August 2015
Denali
Alaska
Dry Tortugas
Florida
Everglades
Florida
Gates of the Arctic
Alaska
Gateway Arch
Missouri
Glacier
Montana
Glacier Bay
Alaska
Grand Canyon
Arizona
Visited May 2016
Grand Teton
Wyoming
Visited June 2025
Great Basin
Nevada
Visited July 2023
Great Sand Dunes
Colorado
Visited August 2015
Great Smoky Mountains
North Carolina, Tennessee
Guadalupe Mountains
Texas
Visited January 2024
Haleakala
Hawaii
Visited August 2018
Hawaii Volcanoes
Hawaii
Visited July 2022
Hot Springs
Arkansas
Indiana Dunes
Indiana
Visited September 2025
Isle Royale
Michigan
Joshua Tree
California
Visited May 2026
Katmai
Alaska
Kenai Fjords
Alaska
Kings Canyon
California
Kobuk Valley
Alaska
Lake Clark
Alaska
Lassen Volcanic
California
Visited October 2015
Mammoth Cave
Kentucky
Mesa Verde
Colorado
Visited May 2025
Mount Rainier
Washington
North Cascades
Washington
Olympic
Washington
Petrified Forest
Arizona
Visited May 2016
Pinnacles
California
Redwood
California
Visited January 2016
Rocky Mountain
Colorado
Visited August 2015
Saguaro
Arizona
Visited May 2016
Sequoia
California
Shenandoah
Virginia
Theodore Roosevelt
North Dakota
Virgin Islands
U.S. Virgin Islands
Voyageurs
Minnesota
White Sands
New Mexico
Visited January 2023
Wind Cave
South Dakota
Wrangell-St. Elias
Alaska
Yellowstone
Idaho, Montana, Wyoming
Visited June 2025
Yosemite
California
Visited July 2015
Zion
Utah
US States 40 / 51
Alabama
Alaska
Visited Fairbanks, November 2016
Arizona
Visited Flagstaff, May 2016
Arkansas
California
Visited San Francisco, September 2008
Colorado
Visited Alamosa, August 2015
Connecticut
Visited Stamford, December 2024
Delaware
District Of Columbia
Visited Washington D.C., September 2012
Florida
Visited Miami, February 2015
Georgia
Visited Atlanta, March 2011
Hawaii
Visited Maui, August 2018
Idaho
Visited Sandpoint, September 2016
Illinois
Visited Chicago, September 2013
Indiana
Visited Chesterton, September 2025
Iowa
Visited Leon, September 2023
Kansas
Visited Lawrence, July 2015
Kentucky
Louisiana
Visited New Orleans, June 2022
Maine
Visited Bangor, April 2022
Maryland
Massachusetts
Visited Boston, April 2022
Michigan
Visited Kalamazoo, October 2025
Minnesota
Visited Minneapolis, August 2025
Mississippi
Missouri
Visited Kansas City, July 2015
Montana
Visited Noxon, September 2016
Nebraska
Visited Crawford, November 2024
Nevada
Visited Las Vegas, August 2015
New Hampshire
Visited Portsmouth, April 2022
New Jersey
Visited Jersey City, December 2024
New Mexico
Visited Villanueva SP, January 2023
New York
Visited New York, November 2014
North Carolina
Visited Durham, October 2023
North Dakota
Ohio
Visited Cleveland, May 2018
Oklahoma
Oregon
Visited Portland, September 2009
Pennsylvania
Visited Philadelphia, August 2016
Rhode Island
Visited Providence, November 2025
South Carolina
Visited Columbia, August 2017
South Dakota
Visited Black Hills NF, November 2024
Tennessee
Visited Nashville, August 2019
Texas
Visited Austin, August 2015
Utah
Visited Salina, October 2019
Vermont
Virginia
Visited Crystal City, September 2012
Washington
Visited Spokane, September 2016
West Virginia
Wisconsin
Wyoming
Visited Bighorn National Park, August 2021
Engineering 5 / 13
Active Mine
One with a very long ride down in a lift.
Aircraft Carrier
Active would be great, but just an old one is fine.
Visited USS Hornet, June 2014
Airplane Factory
Airliners, fighter jets, or perhaps tiny planes.
Anechoic Chamber
Not big, but still quite impressive.
Deep Space Observatory
You know, the really high up ones. Full of science.
Fission Reactor
Preferably without too much radiation exposure
Fusion Reactor
Big, round and very, very hot.
Visited JET, May 2010
Huge Dam
We're talking giant here. Preferably with an inside.
Visited Hoover Dam, August 2015
Oil Rig
One of those absolute units in the sea, not a little one.
Particle Accelerator
Big, round, and very, very cold.
Visited Diamond Light Source, March 2012
Rocket Launch
Something reasonably large. Moon launch best.
Visited KSC, FL, March 2015
Tallest Building in the World
Waiting until this is no longer in Dubai.
Top of a Wind Turbine
Underneath is easy. Up top? Less so.
Nature 7 / 19
Antarctica
I'd include the other continents, but they're too easy.
Deep Cave
Something that needs proper caving equipment to reach.
Desert
Beautiful in its desolation.
Visited Mojave National Preserve, January 2017
Gates of Hell
A continuously-burning hole in the desert.
Giant Waterfall
Victoria Falls, then perhaps Angel Falls.
Glacier
A nice big one, full of ice.
Hot Spring
Of the volcanic kind, naturally.
Visited Takaragawa, Japan, April 2016
Mount Erebus
Specifically, the ice caves.
North/South Pole
One is fine, two is amazing.
Ocean Trench
A long trip in a tiny submersible...
Rainforest
And not just the little bit in the Eden Project.
Relampago del Catatumbo
The world's most constant lightning storm.
Space
Why not? It's not that far away...
Taiga
The world's Arctic forest.
Visited Fairbanks, Alaska, November 2016
Tiny Ocean Atoll
Where there's no other land in sight.
Total Eclipse
A miraculous cosmological coincidence
Visited Greenville, SC, USA, August 2017
Volcano
We're talking full-on lava lake here.
Visited Kīlauea, Hawai'i, July 2022
Countries 34 / 34
Argentina
Visited March 2016
Australia
Visited July 2014
Belarus
Visited February 2020
Belgium
Visited February 2011
Brazil
Visited October 2017
Canada
Visited July 2010
Colombia
Visited February 2020
Cyprus
Visited May 2011
Czech Republic
Visited May 2009
Denmark
Visited April 2019
Estonia
Visited August 2022
France
Visited January 1995
Germany
Visited October 2012
Hong Kong
Visited June 2012
Hungary
Visited April 2014
Ireland
Visited June 2003
Israel
Visited June 2018
Italy
Visited January 2002
Japan
Visited June 2015
Netherlands
Visited June 2011
New Zealand
Visited June 2017
Norway
Visited January 2014
Poland
Visited May 2013
Portugal
Visited August 2013
Serbia
Visited October 2019
Singapore
Visited June 2015
Spain
Visited January 1992
Sweden
Visited April 2019
Switzerland
Visited June 2012
Taiwan
Visited June 2017
Ukraine
Visited October 2010
United Kingdom
Visited April 1988
United States of America
Visited September 2008
Vatican City
Visited February 2014