Places Andrea IX Wants to Go

A museum of alchemy and a basement laboratory all housed in an ancient building in a Gothic tower.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

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

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

A submerged village appears when dam levels drop.

Sleep snuggled in a sphere suspended atop the forest canopy of Vancouver Island.

A 200-year-old prison that now houses a peculiar crime museum.

"In the Dark" Restaurant in Paris offers dinner in complete darkness.

Abandoned medieval hill town.

A cluttered and astounding collection of antiquities and curiosities.

Geothermal waterfalls in Tuscany.

The largest stone moai on Rapa Nui.

Ruins of a 10th century church tucked away deep in a botanical garden.

360° views of the city plus five floors of optical illusions and hands-on science.

Living trees form the structure of an open-air palace.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

This massive subterranean fissure is known as the "underground Grand Canyon."

A church that bred legends, and served as an inspiration for the Da Vinci Code.

The world's most active stratovolcano is almost always erupting.

This 16th-century monastery has been turned into a surrealist architecture compound.

Submerged trees jut ghost-like out of an idyllic turquoise mountain lake.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

Hidden in an Italian forest is a completely homemade amusement park that has taken a lifetime to create.