A 17th-century mosque that was used for war more than worship.

An ancient iron pillar in Delhi that seems to be rustproof.

An eclectic mix of influences rot together in harmony in this India necropolis.

Modest by day, illuminated majestically at sunset.

A palatial sculpture park was built illegally and in secret by a self-taught artist over 36 years.

An extraordinary "City of Caves" carved from solid stone.

The remains of what was, not so long ago, the world's largest city.

This complex of vertically-excavated Buddhist, Jain, and Hindu monolithic temples in India's Maharashtra providence illustrates a spirit of tolerance characteristic of ancient India.

Half-size replica of the Taj Mahal.

Rock-cut cave complex filled with ancient Buddhist artwork.

Go inside the house that inspired L. M. Montgomery to create one of literature's most beloved heroines.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

These stairs were built to accommodate royals mounted on elephants.

The legendary luxury train passage is commemorated with a charming museum inside its former eastern terminus.

A marvel of Byzantine engineering under the streets of Istanbul.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

Countless grotesque faces stare out from this eerie Prague art wall.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

Monument to a suicide protesting the Soviet invasion.

Museum dedicated to the terror regimes of Hungary.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Real bones which are said to have belonged to a Polish dragon.

Three bridges and one giant canyon make up this fantastic Spanish settlement.