The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

Elevated freight railway turned wildly successful urban park.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

The world's largest piece of copyrighted artwork.

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

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

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.

A men’s restroom became a sandwich shop.

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

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

Narrowest house in Boston.

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

The Boston square dedicated to the dark poet who was born nearby.

This beautiful Victorian ironwork masterpiece was built to keep London from smelling like poop.

Abstract dinosaur models in London.

The remains of Crystal Palace Great Exhibition of 1851.

This elaborate Byzantine-style building was designed for a not-so-pretty purpose.

Putting the "mod" in "modular" since 2000.

A student driver's nightmare.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.