America's smallest "national forest" has only 33 trees.

Considered by many to be one of the most dangerous highways in Alaska.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

Paths are maintained, but trees have taken over plots.

Thirteen pastel palaces in downtown Charleston add a gorgeous splash of color to the city.

Three columns of volcanic rock shoot out of the ocean.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

An encyclopedic collection of mammal penises.

This verdant, tree-lined Reykjavik graveyard is both enchanting and eerie.

This stunning concert hall has become a symbol of Iceland's national recovery.

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

An ancient knight and a symbol of the city's freedom.

A full figure 4th century incorruptible saint lies in a glass coffin in Croatia.

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

Gargoyle head that brings good luck.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

This colorful theme park dedicated the official fruit of Maine serves sweet, tasty treats.

This candy-striped tower is the farthest east you can go in the United States.

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

Look closely and you’ll notice that the color changes a third of the way up the tower.