The upshot of this report is that while I planned my time in Cusco mostly for acclimatization purposes, it is one of my favorite places I've visited (see my profile for context on this statement). Fascinating to walk around, full of living indigenous culture and centuries of history, good food and hotels, even shopping (which I usually don't care about). It felt like what I love about European cities... except its cobblestoned streets are 1500 feet higher than the Zugspitze!
I definitely enjoyed the rest of the trip (Lima and the Sacred Valley), too. I've been wanting to do this for a while (since reading 1491 decades ago) and got lucky when friends were up for doing a Backroads trip to Machu Picchu with me (first week of September). We did our "extra" days separately so I was on my own in Lima. There is a lot of music/dance in this trip and I have video in a pinned story on my Instagram (same username as here).
Day 1. Amtrak to Newark and a rather cramped, unpleasant daytime United flight to Lima. It was around 11:30pm when I arrived at the Tierra Verde Larco hotel in Miraflores, solid and inexpensive.
Day 2. Nice to wake up with no jetleg! An easy start: took Uber to the Museo Larco, which I loved! It had a wonderful collection, including good labels and open storage. I was the only person to present myself for the 10:30 English-language tour so I had a private hour-long visit with Annette, who was quite engaging and well-prepared. (During this trip, I gathered that studying local history and English to prepare for a career in tourism is a popular path for strong students.) I learned a lot about pre-Columbian cosmology which was useful for the rest of the trip. Had lunch on the patio of the fancy-ish museum restaurant. Then I took another Uber to MALI, the art museum, which has collections from ancient times to the present including a lot of textiles, which I especially like.
To get back to the hotel, I braved the Metropolitano, a bus rapid transit system. What a trip! I rode it several times; it was always as crowded as the NYC subway ever is—an authentic local experience, maybe not for the faint of heart. If a woman waiting in line hadn't taken me under her wing and shoved me onto the bus with her, I'd probably be still waiting on the platform at the Estación Central to this day. Lima has quickly grown to a population of over 10 million with limited infrastructure.