Seasons
Season 1 episodes — IMDb ratings
| # | Title | Rating | Votes |
|---|
| 1 | Manhattan: Grand Central to Broadway | 7.0 | 17 |
| 2 | Manhattan: Lower East Side to World Trade Center | 6.5 | 15 |
| 3 | Brooklyn to Montauk | 6.7 | 16 |
| 4 | New York City to Garrison | 7.2 | 15 |
| 5 | Poughkeepsie to Albany | 7.0 | 16 |
| 6 | Schenectady to Rochester | 6.8 | 15 |
| 7 | Buffalo to Niagara Falls | 7.8 | 17 |
| 8 | Philadelphia to Atlantic City | 6.9 | 13 |
| 9 | Lancaster to Gettysburg | 6.8 | 13 |
| 10 | Wilmington to Havre de Grace | 6.8 | 12 |
| 11 | Baltimore to Fort McHenry | 6.5 | 11 |
| 12 | Washington DC | 7.5 | 14 |
| 13 | Georgetown to Mount Vernon | 7.1 | 13 |
| 14 | Manassas to Richmond | 6.9 | 15 |
| 15 | Petersburg to Jamestown | 7.6 | 13 |
Season 2 episodes — IMDb ratings
| # | Title | Rating | Votes |
|---|
| 1 | St Louis, Missouri | 7.9 | 15 |
| 2 | St Louis to Jefferson City, Missouri | 7.3 | 15 |
| 3 | Sedalia to Kansas City, Missouri | 7.9 | 11 |
| 4 | Kansas City to St Joseph, Missouri | 7.9 | 10 |
| 5 | Lawrence to Topeka, Kansas | 7.8 | 14 |
| 6 | Dodge City to Lamar, Colorado | 7.7 | 14 |
| 7 | La Junta, Colorado to Pueblo, New Mexico | 7.8 | 13 |
| 8 | Canon City, Colorado, to Colorado Springs | 8.0 | 11 |
| 9 | Santa Fe to Acoma, New Mexico | 7.5 | 12 |
| 10 | Albuquerque, New Mexico to the Grand Canyon, Arizona | 7.9 | 12 |
| 11 | The Twin Cities, St Paul | 7.1 | 13 |
| 12 | The Twin Cities, Minneapolis | 7.8 | 13 |
| 13 | Red Wing, Minnesota to La Crosse, Wisconsin | 7.6 | 14 |
| 14 | Tomah to Portage, Wisconsin | 7.8 | 10 |
| 15 | Milwaukee to Racine, Wisconsin | 6.9 | 13 |
| 16 | Chicago, the Windy City | 8.1 | 10 |
| 17 | Chicago, US Rail Hub | 7.4 | 11 |
| 18 | Homewood to Champaign, Illinois | 7.6 | 9 |
| 19 | Mattoon, Illinois to Columbus, Kentucky | 7.9 | 8 |
| 20 | Memphis, Tennessee | 7.6 | 9 |
Season 3 episodes — IMDb ratings
| # | Title | Rating | Votes |
|---|
| 1 | Boston | 7.9 | 10 |
| 2 | Boston to Concord, Massachusetts | 6.8 | 11 |
| 3 | Plymouth to Nantucket | 6.8 | 9 |
| 4 | Providence, Rhode Island to New London, Connecticut | 7.5 | 7 |
| 5 | New Haven to Mount Washington | 7.3 | 9 |
| 7 | Montreal, Quebec | 7.2 | 7 |
| 8 | Montreal to Ottawa | 7.4 | 9 |
| 9 | Thousand Islands to Oshawa, Ontario | 6.7 | 8 |
| 10 | Toronto | 7.4 | 7 |
| 11 | Reno, Nevada, to Colfax, California | 7.8 | 7 |
| 12 | Sacramento to Napa Valley | 7.4 | 8 |
| 13 | San Francisco to Sausalito, California | 7.1 | 8 |
| 14 | San Francisco | 7.2 | 10 |
| 15 | Berkeley to Yosemite | 7.1 | 9 |
| 16 | Santa Clara to Santa Cruz | 6.7 | 8 |
| 17 | Monterey to Santa Barbara | 7.0 | 8 |
| 18 | Los Angeles | 7.3 | 7 |
| 19 | Los Angeles to Laguna Beach | 7.0 | 8 |
| 20 | La Jolla to San Diego | 7.1 | 9 |
Season 4 episodes — IMDb ratings
| # | Title | Rating | Votes |
|---|
| 1 | Ninilchik to Spencer Whistlestop | 7.8 | 11 |
| 2 | Anchorage to Wasilla | 7.6 | 10 |
| 3 | Talkeetna to Denali | 7.5 | 9 |
| 4 | Fairbanks to Juneau | 7.6 | 9 |
| 5 | Skagway to Carcross | 7.8 | 9 |
