A former poultry store that looks like a giant duck and is one of the "seven wonders" of Long Island.

The first museum in the world devoted to sexual gadgetry.

The absurd creation is a compulsory destination for selfies in Buffalo.

A rusted blade sticks out from the trunk of this tree, left as a memorial to a young man who left to fight in the Civil War but never returned home.

South Korea's love of the silly photograph is on full display at this goofy collection of trompe l'oeil paintings.

360° views of the city plus five floors of optical illusions and hands-on science.

A black and white painted wall creates an optical illusion in the California desert.

An unusual vending machine designed to support mourners during funeral ceremonies at Zurich's largest cemetery.

Because sometimes you need to make a batch of frites even when the stores are all closed.

This fancifully decorated Victorian home in New York’s Hudson Valley is the only known fully domed octagonal residence in the United States.

The first (but not only) upside-down house in Germany.

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

This stunning sea creature-shaped home blends into the landscape like a fantasy villa.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A curious collection of miniatures in a quiet corner of the Chicago Children's Museum.

A delightful museum entirely dedicated to the tiny homes of dolls.

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

An abandoned Gold Coast-era mansion once intended for the exiled ruler of Albania, who never arrived.

This abandoned seaside fortress is now simply an imposing ruin being taken back by nature.

A formerly abandoned mental institute, now back in business.

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

A little Lego easter egg is hidden underwater in the Boston Tea Party tableau at Miniland.