One of the few monuments dedicated to the devil (one of the two in Madrid). This fountain, at 666…read moremeters above sea level, is located in one of the highest places of El Retiro Park. I think this point there is one of the best sunsets in the city, depending on the time of year, you can see the sun behind the skyline of the downtown. It is worth going up the Cuesta de Moyanos to this point of the Park when the sun sets, just to see the colors of Madrid sky.

Seeing how intact this thing is was amazing to see Europe…read morewas so amazing with these buildings that brought water in Its super tall and an architectural treat

Amazeballs! Built around the year 100 (yes, just 100), this Roman aqueduct is a 2,000-year-old…read morearchitectural flex. No mortar. No glue. Just rocks stacked. How did these people know they weren't in an earthquake zone? This thing is still standing, still iconic, and apparently still hydrated the city up until 1974, which is, frankly, ridiculous. Romans: the original civil engineers who said what if we made plumbing beautiful?