The only known Futuro house in North Carolina sits along a stretch of desolate highway on the Outer Banks.  .

An oft-overlooked, magically musical monolith that stands majestically between Arlington Cemetery and the Iwo Jima Memorial.

This stately mansion, built in 1787 by America's first Secretary of the Navy, is rumored to be one of the most haunted buildings in Washington, DC.

This bridge over D.C.'s Rock Creek Park is sometimes called the "Buffalo Bridge" because of its four buffalo sculptures, which were cast from a single piece of bronze.

Rumors persist that a bottle of whiskey is sealed within this Demijohn-shaped adornment.

This train station inspired the name of a 1970's rock band and provided the backdrop for their album cover.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

Established in 1638 to battle the Black Death, this botanical garden is a treasure trove of rare flora.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

Amsterdam's former hotspot for public executions and dissections.

A unique work of automotive art calls this shopping center home.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

A public urinal so pretty, it was declared a national monument.

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

A floating cat sanctuary on an Amsterdam canal.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

This cheese shop also houses a museum devoted to Dutch dairy.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.