Places Added by David Doochin

A completely underwater art museum sends a stark message about humans' impact on the environment.

This elaborate towering structure was once famed for its revolutionary height.

This castle-like building in Manhattan helped destigmatize cancer in the 19th century.

A hugely vast Irish landscape of barren rock that stretches for miles.

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

An ancient tunnel in Jerusalem built to redirect water in the event of a siege is one of history’s great architectural innovations.

This long unused shot tower on the Mississippi remains a point of pride for a small city in Iowa.

The shortest in the world, this landing strip stretches a mere 1,312 feet before steep cliffs on either end plunge into the Caribbean.

This imposing tower named after the mythical sword of King Arthur is considered the tallest freestanding climbing wall in the world.

This funky former tobacco factory is one of the most striking examples of Madrid's cultural diversity.

One of the largest mechanical models of the solar system in the world.

The first and only carousel with a lineup entirely of insects.

This neo-Gothic former auto showroom is one of the few remaining reminders of Brooklyn's "Automobile Row."