This community on a small Venetian island has taken to painting their houses in bright neon hues.

Started as a kitchen garden, now the second largest botanical garden in the world.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Tubing through a cave lit with glowworms is a magical underground experience.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

Iceland's largest lagoon is home to stunning multi-colored icebergs.

Walk 2,300 feet above the ground on the "Troll's Tongue."

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

The largest earthwork effigy in the world.

An Aztec snake god has taken the material form of an apartment complex.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

An ethereal glowing blue ocean cave in Croatia.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

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

A heavenly experience, right here on Terra Firma.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.