The first picture is of Mission San Juan. According to the NPS website:
"Originally founded in 1716 in eastern Texas, Mission San Juan was transferred in 1731 to its present location. In 1756, the stone church, a friary, and a granary were completed. A larger church was begun, but was abandoned when half complete, the result of population decline."
The second picture is of Rio Rio Catina, which is located on the Riverwalk. It's just another example of how bright, busy, and eye-catching the Riverwalk can be, especially on a Friday night!