Venus is built a lot like Earth, but without plate tectonics so all its internal heat boils out through volcanoes.
Venus has at least 85,000 volcanoes -- some of them clearly active.
https://source.wustl.edu/2023/03/scientists-share-comprehensive-map-of-volcanoes-on-venus-all-85000-of-them/ #Venus #volcanoesScientists share ‘comprehensive’ map of volcanoes on Venus — all 85,000 of them - The Source - Washington University in St. Louis
Washington University in St. Louis planetary scientists Paul Byrne and Rebecca Hahn have created the first comprehensive map of volcanoes on Venus, pinpointing 85,000 of them. Their study was posted online in JGR Planets, and the dataset is publicly available
The Source