Uppsala's adorable feline sign celebrates a popular children's book set in the Swedish city.

Bioluminescence in the reefs of the Maldives causes the sea to glow like a starry night sky.

Australian Lake set aglow by Noctiluca Scintillans.

This collection of solar timekeepers includes the world's first digital sundial.

Stand at the center of this lakefront sundial, and you'll become part of the timepiece.

The second-largest collection of runic calendar staffs in Sweden.

Fine dining in the bizarre world of Lewis Carroll.

Potato-peeling mannequins, Inca art, and a dangling tuber mobile help trace the history of fries at this Belgian museum.

This collection of 80 polarizing foods aims to challenge your subjective notions of repulsion.

One of few surviving standpipe water towers in the U.S.

A creepy sculpture of a decapitated head invites viewers to see St. Louis through its empty eyes.

This is not your typical jungle gym.

In Texas, a replica Irish castle is home to a charismatic pack of llamas.

This abandoned artificial island off the coast of New York City is now home to dozens of harbor seals.

A Buddhist shrine in a cave protected by macaques next to dark passages lined with creepy paintings.

Building owners can take out tiles for free at this repository for historic building materials.

A charming remnant of 19th-century fishing towns sits on Michigan’s Leelanau Peninsula.

The lost ruins of the forgotten ferry lie hidden beneath the silt.

An Australian lake whose pink hue defies scientific explanation.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

A three-piece musical sculpture installed between the subway tracks at Kendall Station near MIT.

Six times a day a train runs right through the middle of this Thai street market, sending vendors scrambling.

The idyllic island where the philosopher Jean-Jacques Rousseau spent “the happiest time of his life.”

A disconnected rotary phone for "calling" lost loved ones offered a unique way of dealing with grief in disaster-stricken Japan.