The mansions in Virginia built by Thomas Jefferson, known for their neoclassical style, are Monticello and Poplar Forest. Monticello, located near Charlottesville, served as Jefferson's primary residence and is noted for its elegant design and innovative architectural features, such as its domed roof and portico. Poplar Forest, Jefferson's retreat in Bedford County, reflects his architectural principles as well, focusing on symmetry, proportion, and classical motifs. Both homes embody Jefferson's vision of American democracy and Enlightenment ideals, highlighting his passion for architecture, landscape design, and the integration of the natural environment with human habitation.