Patrick Dougherty's fantastic living tree sculptures, mind-blowing but temporary.

This memorial to the Mercury Seven astronaut stands at the site of his former elementary school.

One of the world’s largest living advertisements is made out of pine trees.

This unassuming home was once “grand central station” for the Underground Railroad.

The evolution of recreational vehicles and motorhomes is on display in the “RV capital of the world."

This elaborate estate contains a stunning marble aviary, a sunken conservatory, and a magnificent music room with a two-story pipe organ.

A lesser-known part of the Kinsey Institute is this impressive collection of art, artifacts, and material culture related to human sexuality.

If astronomy had a ghost, it would look like this observatory.