Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

Intensely colorful calcite pools in Southern China.

This historic stone bridge has an entire neighborhood clinging to its sides.

Immortalized in bronze, this frazzled student will be glued to his screen for centuries.

The Jewish diaspora shares a menu at this museum café.

Two thirds of this Montreal neon icon has survived to flash another day.

Every year, the colorful murals of Montreal get a complete makeover.

Two adjoining collections of 19th-20th century physics apparatuses and instruments.

Canada's largest graveyard boasts a lot of noteworthy artifacts as well as its own computerized mapping service.

Montreal's giant farmer's market is a foodie's best friend, especially in the winter months.

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

One of Canada's oldest museums, the beautiful Redpath has been serving up Natural History and Ethnography since 1882.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

America's original house of worship for Spiritualism, the religious movement based on communing with the dead.

Montreal's colorful subway station shows its support of the local LGBT+ community.

Its columns were all carved from the same white oak tree.

Small ship votives hang from the vaulted ceiling of this port-side church with a Latin inscription on the wall.

A historic Montreal market that was the city's agricultural hub for over century.

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

Terrifying derelict military hospital once housed a recuperating Hitler.

This domed temple was built in a hidden cave mouth as a refuge for sinners seeking absolution.

This medieval Italian town is a sheer (and beautiful) cliffside defense.

This conical hill was built as a testing ground for an engineer known as the Glider King.