Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The wooden telephone box hidden away in London's Piccadilly was the original prototype of the iconic kiosk.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

This historic collection of Native Alaskan artifacts was resurrected through a partnership between the WPA and tribal artisans.

A historic freight system that found the true gold rush is in tourism.

A monument commemorating the role of Alaska's native Tlingit guides in the Klondike Gold Rush.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

An office built to look like a giant basket.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

One of the last-standing and most prominent structures from a long-lost colonial port community.

Infamous marsh filled with toxic waste, World War II-era London rubble, and dead mobsters galore.

An allegedly cursed tree represents a town's reckoning with a racist past.

A unusual sanctuary for abused and exotic animals in South Jersey.

This disastrous New Jersey safari park saw animal attacks, escapes, and disease before being abandoned.

These mystical miniature houses bring a touch of magic to the New Jersey woods.

This tiny New Jersey village has lived many lives but seems determined to remain a ghost town.

A recently abandoned psych ward at the end of Sanatorium Road.

An underwater city for the dead.

Northern Ireland's Brobdingnagian stepping stones.