Latvia's symbolic mountain-shaped national library is home to millions of cultural tomes.

Suspended above the ground in a thicket of towering Georgia trees is a modern architectural wonder.

Unparalleled stargazing, one of Colombia's best observatories, and a swimming pool can all be found in the middle of this ancient tropical forest.

A sophisticated astronomical tower built by one of the greatest Persian scholars of the Islamic Golden Age.

This open-air heritage museum illuminates centuries of historic English life from a West Sussex village.

This fairytale-like structure is the last turf church ever constructed in Iceland.

An early work of the architect Álvaro Siza Vieira, these swimming pools blend into the beach.

This stunning sea creature-shaped home blends into the landscape like a fantasy villa.

Given just one more year to live, Conrad Schuck built his dream house in Bartow, Florida.

This enormous secondhand bookstore inside a Victorian train station sparked the "Keep Calm and Carry On" craze.

These rustic holiday homes are made from discarded fishing boat hulls.

A fantastical bed and breakfast with magically unique rooms.

The oldest of the three remaining bridges in England with buildings on top of them.

Nestled in the mountains of Portugal is a tiny village made almost entirely of schist.

For decades, it has disappeared and reappeared as water levels rise and fall.

It's a mystery how these curious columns wound up in an Edinburgh suburb.

One man has spent decades faithfully constructing this unique brick and cinderblock castle.

This marvelous work of outsider architecture is built into the cliffs of an Israeli beach.

An ordinary lamppost situated in the middle of Cambridge has an unusual moniker and history.

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.

Cave on extinct volcano, once home to famous mathematician Pythagoras.

The largest stone moai on Rapa Nui.

World's oldest operating science fiction and fantasy club, once home to Ray Bradbury and L. Ron Hubbard.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.