A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

This small church was constructed over the ruins of three temples dating to the Roman Republic.

This medieval church in Rome was almost destroyed following a terrorist attack in 1993.

Plaques on its facade commemorate the Tiber's most destructive deluges.

The remains of this 2nd-century Roman temple are incorporated into a modern building.

A statue representing a lost Roman profession that was vandalized for centuries.

A sculpture serving as an homage to Pope John Paul II.

A monumental fountain in Rome features a large statue of Moses that has been criticized for centuries.

An ancient Egyptian obelisk is now used to commemorate fallen Italian soldiers.

Outside a market, beautiful murals pay tribute to fruit sellers and farmers, as well as a few legendary artists.

Frida Kahlo's childhood home, now a museum of her life and works.

Superstitious? Discover the witchy side of Mexico through its largest esoteric market.

A church dedicated to the Mexican skeleton saint.

Diego Rivera hid various people and symbols in his first large-scale mural project.

These colonial murals are a fascinating hybrid of Spanish and Indigenous aesthetics.

These nearly 500-year-old scenes are largely faded by the ravages of time, yet still maintain their power to horrify.

A medieval fresco which reminds visitors that death will come for us all.

The train platform where Jews were sent to concentration camps is now preserved as a Holocaust memorial.

A Milanese café entirely designed by the American director Wes Anderson.

A space dedicated to contemporary art and culture, co-chaired by fashion icon Miuccia Prada.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

Most prolific publishing house in the 1600s open to the public.

Incredible labyrinth of man made caves.

A luxury hotel housed in a former 15th century Gothic church.