Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

A humble ancient well where Scottish knight, Sir William Wallace, took his final drink.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

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

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

A crumbling hospital from the 1850s on Roosevelt Island.

The last remaining 19th-century tenement from Boston's old West End neighborhood.

This headstone marks the grave of an 11-year-old boy killed during clashes in the streets over the boycotting of British goods.

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

The massive machine creates cracking displays of indoor lightning.

A dark, dank room in subterranean Manhattan was the site of a ghastly murder.

The famous author's cottage hideaway.

The beautiful tunnel that ran from the lobby to Penn Station is still hidden underneath 34th Street.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

A hands-on traveling collection of the innovative devices of yesteryear.

Elevated freight railway turned wildly successful urban park.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

This conical hill was built as a testing ground for an engineer known as the Glider King.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

Take a few seconds to look at this abandoned, art-filled station as you pass by on the subway to Ueno.

Mythical beasts symbolizing the city of Tokyo guard a historic bridge.

A hidden three-foot-wide house separates these two regal churches.

This small chapel is built of human bones and decorated with a golden skeleton.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.