The meaning behind this triumphal Roman arch was a mystery until the early 20th century.

Once the grandest synagogue in medieval Spain, it now stands as a memorial of the 15th-century Jewish exile.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

These "mermaids" that surround a plaza in Segovia are rather sphinx-like.

A curious memento mori hangs in the magnificent Cathedral of Segovia.

This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

A giant Troll lurks under one of Seattle's oldest bridges.

This museum is dedicated to the history and design of purses.

A beautiful South Korean gate and garden in Little Rock honors American Taekwondo.

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

Once one of the largest producers of pig iron in the world.

A miniature city built by a single hunchbacked monk.

The former home of the hard partying literary power couple is now one of the only museums devoted to their story.

One of only two remaining Victorian-era greenhouses in New York.

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.

Sniff the Titan Arum's rotting flesh.

Once thought to be the fabled Holy Grail, it is now known to be an oil lamp.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

The first piece of public art dedicated to LGBT rights.

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.

The notorious headquarters of a corrupt political machine.