Eighty million natural history specimens call this gargantuan museum home.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

To find the "unicorns of the deep" you've got to go downstairs.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

This working class sculpture pounds his hammer all the livelong day.

Allowing humans and fish alike to migrate from freshwater to saltwater and back again.

The first park built over a freeway is a brutalist masterwork.

A museum dedicated to the history and exploration of both popular music and science fiction.

A walk through the historic city center, under the streets of Seattle.

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

A beacon atop a downtown building provides Bostonians with weather forecasts and baseball news.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

The site of Paul Revere's historic two lantern warning.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

Two thousand artifacts from around the world collected by one woman who loved to travel.

An enormous, inside-out glass globe built in 1935.