Opened by President García Moreno in 1864, this four-sided observatory is the oldest on the continent. It houses a museum of 19th-century pendulums, sextants, chronometers and other historical instruments. From February to May and July to August, stargazing sessions are held on Tuesday, Wednesday and Thursday nights ($3; reserve ahead). It sits inside the small Parque La Alameda.
Quito Observatory
Quito