The last remaining vestige of a popular 1999 public art display.

These enormous, stern-faced statues greet visitors with lanterns, and sometimes costumes.

How did a 2,000-year-old Roman column find its way to a Chicago park?

The largest interactive exhibition in the U.S. exploring human history through the lens of power, punishment, and psychology.

A subterranean house of worship carved right out of the bedrock.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

An abstract monument to a symphonic composer.

This ten-ton fruit sculpture celebrates the Finland homeland.

Collection of nearly 500 concrete figures sculpted by the late Veijo Rönkkönen.

Two hand-built octagonal smoke saunas open every Friday on the grounds of a former wartime headquarters, within a UNESCO Global Geopark, in one of Finland’s least-visited corners.

The smallest restaurant in the world.

A plaque marks the house in Stockholm where the French philosopher René Descartes lived up until his death.

Stockholm's narrowest alley is barely over two feet wide.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

Louis Sullivan’s dark, swirling cast-iron designs envelop a popular department store in this Chicago landmark.

The company moved out of its sprawling headquarters, leaving plenty of traces behind.

This awkward aquarium sculpture is one of the strangest statues in Chicago.

A hidden oasis just north of Chicago's Chinatown.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Few of the many visitors to this resort town know of its hidden Maya ruins.

The colonial home of Paul Revere during the American Revolution.

In a cemetery full of holy men, mobsters, and haunted graves, among the most remarkable graves an ordinary husband and wife's spinning headstone.

New York's transit system peddles terrible food in limited windows—this restaurant is a rare exception.