Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

The final resting place of the most famous sharpshooter.

One of the largest collections of holy relics in the country.

A small town museum celebrates the history of the Ohio county that produced Annie Oakley and other famous figures.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

Ohio's 19th-century communist micro-society.

When a guy acquired a free church, he hauled it away piece-by-piece to make it the tasting hall at his vineyard.

A jukebox headstone marks the grave of the Cleveland disc jockey credited with coining the term “rock 'n' roll."

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.

The first museum in the world devoted to sexual gadgetry.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

Moonbows over Kentucky.

The world's longest known cave system.

Just outside the Ohio Supreme Court sits a testament to justice.

Inside houses a vast collection of military aircraft and missiles spanning the ages.

Artifacts fill the old headquarters of the hugely influential political movement to ban alcohol in the United States.

A gas station has taken the place of the home of the 19th American President.

The 25th President's marble casket can be visited in this classical Ohio tomb.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.