Hiding in plane sight.

Doris Duke's lasting collection of Islamic Art, hidden in a Hawaiian paradise.

A gregarious Ohio resident has been building his whimsical temple to peace for decades.

Locals place their offerings on this nightmarish gnarled tree so the witches won't summon another storm.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

This ancient Hawaiian henge may have been an early star chart.

A safe place for the wild donkeys of a hot vacation destination.

The remnants of an abandoned, 19th-century gold mill along Aruba's rugged northeastern coast.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

The overgrown remains of an old rail bridge rise above the valley like ancient Greek ruins.

The failure of one component toppled this entire bridge during rush hour.

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

The world's second largest rocking chair is found on Route 66 in Cuba... Missouri.

A pharmacy built in the shape of a mortar and pestle, now resembles a fancy cocktail.

This tombstone marks the final resting place of the beloved 1990's character, Ernest P. Worrell.

Outstanding collection of 19th century medical instruments includes a life-size figure cast from as many as 200 cadavers.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

A curiosity-seeker's paradise set inside a three-story historic school house.

The grave of the iconic Kentucky Fried Chicken mascot features a bust of the man behind the goatee.

This hidden jockey “walk of fame” celebrates the winning riders of the Kentucky Derby.

This humble star-gazing center touts itself as the "Birthplace of American Astronomy."

Beautiful waterfalls grace a canyon visibly torn by a violent tornado.

This NASA test station is home to some of the world’s largest and most powerful space environment simulation facilities.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.