Ann Arbor United States The American Center for Mobility is one of the largest test and development centers for autonomous and automated vehicles. It was built starting around 2015, on the site of the former World War II bomber plant at Willow Run airport.

Detroit United States The Ambassador is one of only three bridges connecting Michigan and Canada over its entire 721 mile water boundary. It connects the two largest cities on the Michigan/Ontario boundary, Detroit and Windsor.

Lancaster United States Usually called the world's largest maze when it is created every year at this site, the maze, cut into a cornfield, is one of several major maize mazes that "crop up" across the country at the end of each summer.

Amarillo United States The Amarillo Helium Plant was the first major production site for helium, and was the source of nearly all the helium in the world for more than a decade, up to WWII.

Amarillo United States Helium Time Columns is a work of public art outside of the Discovery Center, a small science museum in the helium capital of the world, Amarillo, Texas.

Drawbridge historical United States Located at the southern end of the San Francisco Bay, Alviso is an old port town with a dried up marina.

Alcatraz United States Alcatraz Island, the notorious prison that once housed 260 federal offenders per year on average, is now visited by over one million people a year. Tourists are permitted to see the main prison areas, however much of the rambling old facility is off-limits.

Hancock historical United States The Alpine Tunnel is an abandoned railway tunnel, east of the old railway and mining town of Pitkin. It was a 1,772 feet long tunnel built for a narrow gauge rail line that ran from Denver to Gunnison.

Yuma United States This 80-mile-long canal brings water from the Colorado River to the citizens and agricultural industry of the Imperial Valley.

North Hero United States This official building is a shared Port of Entry, intentionally built on the boundary, allowing customs and immigrations officers from both countries to work in one structure.