The final remnant of the Arkansas zinc industry is this historically protected ghost town.

Installed at a chaotic intersection, this gave London traffic cops a place to hang their heavy woolen coats.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

This remote fort on the Yukon River is a vestige of the wild Alaska gold rush.

This Ukranian fortress is one of the best-preserved medieval castles in Europe.

The medieval town's star-shaped walls are geometrically dazzling, though not entirely impenetrable.

This underground church is topped with a 500-foot cross that is seen by many as a beacon of fascist hubris.

Whether they are bulls or pigs, these ancient animal sculptures are fascinating relics.

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

A familiar otherworldly creature guards this 12th-century Scottish abbey.

A stone memorial marks the spot where the fighting of World War I finally ceased—three days after the armistice was signed in Europe.

Visit the home of Sweden's beloved fictional character, Pippi Longstocking.

The only Frank Lloyd Wright-designed structure in the architect's hometown.

Public outcry led to this bridge's unique character which celebrates a giant frog battle and also sewing.

Home of Philip Johnson, one of the 20th century's most influential architects.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

This fairy-tale, neo-Gothic church in the Azores is a world of magical realism.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

This network of tunnels housed an entire village for years, and even had a hall for screening movies.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

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

A marble Lucifer hides behind the pulpit of this Gothic cathedral.

Real bones which are said to have belonged to a Polish dragon.