A model of a galactic embassy is hidden in plain sight along the highway, proposed by a UFO religion to find the aliens that created life on Earth.

A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.

A psychological self-portrait in the form of a giant, segmented head.

The record holder for the world’s largest peach.

This psychedelic tromp l'oeil seems to be beckoning drivers to crash into a wall.

This titanic steel chain linking two buildings was installed without permission but instantly beloved.

A 90-year-old underground water reservoir offers a more industrial kind of tranquility.

A park filled with vibrant mosaics created by more than 300 folk artists.

A double agent hid information for the Soviet Union beneath this bridge for more than 20 years.