The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

A snapshot of the city's fascinating voodoo culture.

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

Remnants of a storybook amusement park hidden behind a strip mall.

Ancient snack bar of the Roman Empire re-opened.

A diminutive memorial marks the site of a successful assassination by a right-wing death squad in America's capital.

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

Parking garage where Bob Woodward met Watergate source "Deep Throat."

Helen Keller once broke ground on this historic center for the study of technologies to benefit the hearing impaired.

A Nesting Doll of Churches.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Architectural monsters are devouring this palace's every door and window.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

A daybeacon pyramid is about all that's left of this island that is said to have sunk due to a pirate's curse.

One Italian taxi driver covered his entire house in small seashells creating a weird bit of architecture that is preserved to this day.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

The largest hewn stone in history.

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.