Try Vega
You can try the OmniSci Vega engine and work with various examples. The database used for the examples includes over 100,000,000 rows. The data is based on the political donations dataset. Some columns have been stripped so that the data can fit on one NVIDIA Tesla P100 GPU.
Try It: OmniSci Vega Editor
The following examples are available:
Choropleth Visualizing 43000 Zipcodes
Multilayered Map (Point and Choropleth)