Shop of curiosities with a dinosaur museum tucked in its basement.

In California, colorful roadside signs remind us all that love transcends borders.

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

This house renovated by Frank Lloyd Wright was the centerpiece of a lavish 20th-century estate.

A crumbling stone stable and carriage house are all that remain of a manse that was once filled with Egyptian artifacts.

A desiccated merman and a walrus penis bone are among the oddities in this eclectic collection of shipwreck treasures.

Named after a legendary garden called Eram in southern Arabia, built by order of Shaddad, an Arab king who wanted to compete with Paradise.

An alien landscape of chalk-rock in the Egyptian desert.

Alien rock formations grown from the sands of an Australian national park.

The hottest, driest, and most scenic desert on Earth.

In this tiny Iranian town playing on the roof isn't just encouraged, it's the only place to go.

This ancient burial site is believed to be one of the first earthquake-protected structures in the world.

A dreamy mausoleum honors Persia's most famous poet.

Mirrors and glass shards cover every inch of this arrestingly beautiful mosque.

17th century mosque for Shah Abbas' harem.

The vertical-axis windmills of ancient Persia have been grinding flour for 1,000 years and counting.

Modern-day cave dwellers carve elaborate homes out of volcanic debris.

This beautiful system of tunnels built into natural rock serves as a centuries old plumbing system.

A historic trade hub teeming with gorgeous architecture, colorful goods, and vibrant designs.

A corkscrew-shaped barn in Ireland.

Giant pigeon houses packed into city streets in Egypt.

A 1,500-year-old, 3-story subterranean city where ancient Persians took refuge in times of war.

The wartime boat shelter now doubles as an underground concert hall where musicians play on rafts along the waterway.

This vast, water-filled underground labyrinth can only be toured by boat.