Sight I wanna see: Diamond Head Lighthouse, Honolulu, Hawai'i (Previous pincer wrote, "This photograph was taken from the top of Diamond Head. This is the Diamond Head Lighthouse located in Honolulu, Hawaii)
Heceta Head Light near Florence, Oregon. The tower is 56 feet tall with a focal plane of 205 feet above sea level. The most powerful light along the Oregon coast, the light can be seen 21 miles out to sea and is only stopped by the curvature of the earth.
The Round Island Light, also known as the "Old Round Island Point Lighthouse" is located on the west shore of Round Island in the shipping lanes of the Straits of Mackinac, which connect Lake Michigan and Lake Huron.