One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

Yo, Adrian!

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

This abandoned convent keeps the tomb of a legendary beheaded princess.

One of Monterrey's oldest buildings is perched atop a hill boasting impressive views of the city.

The former house of an anthropologist couple displays Lacandón Maya artifacts in a homey atmosphere.

The underground mall's skylights look like they could be part of a spaceship.

The realistic reptiles lurk along the side of a highway.

This sculpture garden is a serene oasis wedged in the middle of a busy highway.

This tiny island is home to the world's largest colony of Northern gannets.

A little-known hall almost completely covered in art by the beloved local painter.

An island graveyard with spectacular views of the Caribbean.

This palatial building has lived many lives as a convent, prison, cultural center, state archives, and government offices.

A strange machine made to evaluate the world economy using water and lots of tubes.

The masses at this church incorporate enough moonshine and animal sacrifice that they are no longer recognizably Catholic.

An incredible collection of Mesoamerican art assembled by one of Mexico's great artists.

Journey through one of the oldest industrial sites in Scotland.

A massive Montreal stadium that has seen nothing but trouble since its inception.

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

The broken skateboards that became a poignant memorial to a murdered skater.

Pop culture has helped to keep this iconic British building from being destroyed.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

Scattered throughout London are ancient remnants of the city's former bounding wall.

Eighty million natural history specimens call this gargantuan museum home.