A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

The colorful, smiling concrete silos of Vancouver.

This Bogotá museum houses the world's largest collection of pre-Columbian gold relics.

One of the largest mechanical models of the solar system in the world.

A 11-foot former president stands on a Kosovo street that also bears his name.

An unfinished Serbian Orthodox church with 1,389 golden crosses planned to represent the Battle of Kosovo.

A futuristic, brutalist masterpiece that is also strangely prison-like.

A museum dedicated to secret surveillance.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

This World War II-era bunker hides between medieval chapels in Nijmegen's city center.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

This French colonial post office is arguably the grandest in all of Southeast Asia.

Witnesses claim the Virgin Mary statue outside the church once mysteriously shed a single tear.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

This holy site either displays a centuries-old cross or a complete fake.

An unexpected ghost village lurks on the southeast coast of Tenerife.

Monsters and miniatures are held in equal esteem at this wondrous museum.

In 2008, this Mexico City metro station was the site of an hours-long fight between emo, punk, and goth groups.

Many people don't realize there’s a lot going on in—and below—the world’s tallest triumphal arch.

66,000 pieces of art, donated by one of the world's richest men.

The collection of intricate sculptures includes one carved from a mammoth's tusk

The ruins of the bathhouse used by the ill-fated last Aztec emperor still lie in Chapultepec Park.

The only castle in North America to ever house European sovereigns.

In Chapultepec Park there is a pavilion gifted to Mexico from South Korea to honor the 1968 Summer Olympics.