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

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

The heroic sled dog of the 1925 serum run is preserved in taxidermy.

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

A lush green oasis in the middle of Chicago.

10,000 flowered plants bloom in the City of Roses.

The enchanting archway is the only surviving portal into Dublin's lost medieval wall.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

A colorful architectural gem in Seattle's uniquely modern Central Library.

This former coal gasification plant found a curious second life as a popular public park.

A wall of chewing gum moonlights as collective art.

This semi-secret garden in south Seattle emulates a traditional Japanese garden using the plants of the Pacific Northwest.

A giant Troll lurks under one of Seattle's oldest bridges.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Catering to broken dolls for almost 200 years, this repair shop is now a charnel house of doll parts.