This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

The largest greenhouse in the world is home to over one million types of plants.

This magical museum celebrates the life and work of a seminal children's book writer (and occasional spy).

Historic Hull Street was actually the first street with a proper name in the Boston area.

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

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.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

A bit of retro transportation flair preserved in the world's largest department store.

There must be a pun in this haystack somewhere...

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

The 28-foot granite map plots the locations of 40 theaters in New York City.

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

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

Catacombs turned marketplace.

Ship-sized kinetic sculptural fantasy.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

An unusual round church in London with a Templar past.

The anatomical-pathological collection of a man who changed surgery.

London's smallest police station is barely the size of a phone booth.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

A Chicago Movie Palace Lost to Time.

A display of magnificent stained glass windows is the first exhibit of its kind.

The palatial McDonald's that inspired Wesley Willis.