Went to Houston museum district for like 2 hours. Already managed to get most of the Pokémon here.
Besides a bunch of Pokéstops, it was pretty useless. Saw a ??? Pinsir, but it ran after 1 failed Pokéball. There were Ponyta in the area too, but I never managed to encounter them.
Was totally defeated, but coming back home, I ran into a Vaporeon (only 13 CP though) and a Dratini. Managed to get both, now I'm super hyped.
Did you see any gyms?