A steam powered train that runs on city streets.

A modernist landscape of water and sci-fi concrete.

A student driver's nightmare.

The tallest hotel in Europe.

Beijing's World Park offers the excitement of international sites without the travel.

The world's largest solar furnace uses 10,000 mirrors to concentrate the sun's rays to generate power.

Australia's largest traditional hedge maze features a Great Gnome Hunt.

A white Buddhist temple with a golden restroom.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Modern sundial uses ancient methods to tell time and date perfectly.

360-degree virtual reality chamber physically immerses scientists into their data.

Spiral alpine structure provides an alternative experience of viewing the Matterhorn.

An enormous, inside-out glass globe built in 1935.

The first American department store, and home to the largest operating musical instrument in the world.

Towering basalt columns, a creation of fire and ice.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

An abandoned Jazz Age dream home and con man's hideout in Death Valley.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

The only recreation of William Shakespeare's indoor playhouse.

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

Swiss vineyards in a UNESCO heritage site.

The ruins of an ancient island city built atop a coral reef in the South Pacific are spectacular and strange enough to have inspired H.P. Lovecraft.

A man's home is his castle.