A promotional sun clock on the site of San Francisco's great raceway.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

This pseudo-steampunk weapons facility is the world's largest wood and glue structure, and packs quite a wallop.

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

One man’s passion for gas stations is on display along the Rio Grande in northern New Mexico.

Seller of surplus nuclear research materials.

This popular pilgrimage site offers a hole filled with holy healing dirt.

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

This woodland architectural installation acts as a camera obscura for the heavens.

These eerie outliers of the lightning bug family glow a mysterious blue color.

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

One man's extraordinary topiary garden in a small South Carolina town.

A hobby born from insomnia has turned into a hangar full of objects that have been be-buttoned by the Button King.

A curious blend of taxidermy, antique tools, creationism, and a purported antediluvian rock.

Andy Griffith's hometown has made itself up to look like the fictional town of Mayberry.

A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.

This bright yellow relic is the final survivor of a short burst of seashell-shaped petrol pumps.

The record holder for the world’s largest peach.

A historic covered bridge, only one of two remaining in North Carolina.

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

Trace the history of writing at this unusual North Carolina destination.

This former Norwegian sailor's church is slowly being taken over by ramshackle robot musicians.

This massive boulder is either a unique rock formation created by glacial melt or a magic energy vortex.