An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

An artist crafted this lonely left hand as an imagined relic from Singapore's history.

The first fresco Diego Rivera painted in the United States can be found in the former San Francisco Stock Exchange.

The beautiful, ornate weather station is the most popular geocache in Salzburg.

A quirky and charming restaurant founded by artists.

This subterranean disco dance club in a Cuban cave comes with bright lights and a dark legend.

This unique sculpture is often overlooked by pedestrians.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

The echoes of a railroad town that solemnly mark the end of the line.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

A lovely aquatic park built by a one-armed Civil War veteran who made a fortune from lotuses.

A hidden alley in urban Baltimore is a haven for graffiti artists.

A museum dedicated to exhibiting remarkable outsider art.

Baltimore's classic clock tower was once topped by a rotating, 20-ton medicine bottle.

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

This prison-turned-museum is a remnant of the Old West's grizzly, violent past.

A place where the laws of nature seem to have gone completely berserk... but of course haven't.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

One of the largest collections of wildlife art in the United States, built into the side of a cliff in rural Wyoming.

One man's ambition created this psychedelic log home.

A museum dedicated to the history and art of staying clean.

Home to the deepest rift anywhere on Earth.