For millenia, humans have watched the skies and used physical reasoning to predict the apparent motion of the sun and stars. Sometimes, they would use this knowledge to build structures that aligned with the sun on certain days, such as the summer or winter solstice. Such places that have survived are often popular tourist attractions... which makes them a terrible place to visit this year!
So instead, check out some solstice webcams:
Read more about solstices, equinoxes, and the seasons at NASA