At a museum of everyday objects, it is the act of collecting that is really on display.

An airy Art Deco space devoted to the weird and wonderful folk art traditions of Mexico.

A scientific repository of goiters, boils and other ailments throughout Mexican history.

These biodiverse university gardens form a green oasis amid the urban chaos of Mexico City.

A unique sculpture calls the outside of this steakhouse home.

This set of concrete chambers resonates according to different notes of octaves.

The tower was originally used as a chimney for the waste incinerator of St Johns Precinct and Market.

The red letters in the literary pavement leading to the library form a mysterious code.

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

An ode to the history of telephones inside a telephone building.

The most powerful laboratory radiation source in the world pulses with 1,000 times the electricity of a lightning bolt.

A collection of expressive stone sculptures in a scenic and serene riverfront location.

A Latvian rescuer who saved countless lives during World War II.

The statue of a legendary giant who carried Christ and shouldered the world's sins.

Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

On a small island, a replica of a Finnish village from the Iron Age.

One of the oldest structures in Helsinki is this burrow grave that dates back to the Bronze Age.

The door to the museum holds a unique artifact from the Finnish Civil War.

In the waters outside Helsinki, a tiny island once used as a military outpost now welcomes visitors.

A concrete mushroom that divided Stockholm residents for nearly a century.

The three colorful women depict characters from a beloved children's story.

A former suicide bridge is now accumulating symbols of love instead of a body count.

Take a seat and hear a song by the composer Frédéric Chopin.

A spectacular Petrine Baroque summer palace commissioned for Catherine I by Peter the Great.