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

Hitch a boat ride to dine on stilts while watching wildlife.

This famous writer's tombstone is a literary pilgrimage site that was publicly defiled by a rival.

A rare, flower-shaped example of Brutalist architecture in Switzerland.

One of the longest wooden benches in the world snakes around Geneva's Treille Promenade.