Colorful curls of hand-blown glass form a captivating tower in San Antonio's Central Library.

A floating cat sanctuary on an Amsterdam canal.

A showcase of engineering might that was also symbolic of westward expansion.

The first museum in the United States dedicated entirely to posters.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

One of the largest, oldest, darkest, quietest motel rooms in the world.

Don't blink or you'll miss it.

A memorial to the firefighters who died in an industrial disaster is housed in a small public park.

Seven golden statues rise into the sky from sculptor Victor Victori's New Jersey front lawn.

Infamous marsh filled with toxic waste, World War II-era London rubble, and dead mobsters galore.

This old-fashioned candy shop, ice cream parlor, and diner served as the setting for one of TV's most controversial series finales.

Series of storm drains connected to a dark urban legend.

An enormous roadside pan tells the story of a battle for pie glory.

Inside this community-run museum, visitors are treated to the history of toys and games.

The oldest house in the capital of Silicon Valley.

Three plaques mark the spot where the "forgotten father of broadcasting" worked.

It is locally loved and ridiculed for literally looking like poop.

The largest permanent Monopoly board makes one of the longest games even bigger.

It took years to decode its mysterious messages.

Immortalized in bronze, this frazzled student will be glued to his screen for centuries.

One of Canada's oldest museums, the beautiful Redpath has been serving up Natural History and Ethnography since 1882.

Two adjoining collections of 19th-20th century physics apparatuses and instruments.

One of the world's largest collections of rare medical texts and ephemera.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.