This site is believed to be connected to the oldest house in Arlington County.

The birthplace of the Herndon Gas Company.

This small cemetery remains hidden behind a recreation center.

This unique structure is the only one of its kind in Virginia.

The oldest existing one-room brick schoolhouse in Loudoun County.

The famed architect designed this Minnesota gas station of the future with a lookout tower.

When waves crash onto this section of beach, the rocks sing a song.

Minnesota's highest point is a scenic vista marked by a plaque and armies of mosquitoes.

A giant granite cross remembers missionary Father Frederic Baraga, and his safe passage across an angry Lake Superior.

The world's largest floating loon bobs in the lake to kick off an annual festival.

This rare vessel mixed luxury with labor before being converted to a museum and sometimes haunted maze.

The watery grave of an impractical idea.

A haunting army of decomposing, moss-covered stuffed animals and dolls guard this swinging truss.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

The birthplace of professional hockey on the shores of Portage Lake.

The honor of highest point in Michigan was almost given to the wrong peak before this mountain won out by 11 inches.

As its grandiose name implies, this wooden dome is unsurpassed in size.

Large one-man sculpture park in Michigan.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

A popular place to pick up prehistoric coral fossils from the time when Michigan was an ocean.

The statues honor the state transportation employees who've died while performing their work-related duties.

Perched atop a brick smokestack, this enormous lug nut symbolizes the local minor league baseball team.

This mechanical wonder towers above a river in Michigan's capital city.

A horse-drawn 1858 steam pumper fire engine encased in glass on the front lawn of a Michigan insurance company.