Montaigne's Essays are primarily philosophical reflections. He did write a very interesting travel diary recounting his voyage from France to visit the Pope in Rome. [0] That diary has a wealth of observations covering everything from the riches of German towns to the number of kidney stones he passed after drinking the waters at various spas along the way.

If you ever wondered what travel was like in earlier centuries, it's a delightful account but nothing like Pepys. Pepys recorded a vast range of topics from affairs of state to the consistency of his stools (and everything in between).

[0] https://www.gutenberg.org/files/70838/70838-h/70838-h.htm