Grab a cuppa at England's first and only domestic tea plantation.

A restored 1920s cascade stairway provides one of the best views of Oakland's Lake Merritt.

A historic beacon built in the aftermath of the worst maritime disaster on the Great Lakes.

The largest crypt ever constructed in France was built in the 11th century on an ancient Druid sacred site.

This stunning sea creature-shaped home blends into the landscape like a fantasy villa.

Thousands of people walk over this fantastic work of art every day, but how many notice it?

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

Three rooms of bones, curios, and one artist's collection of natural artifacts create this intriguing museum.

This beautiful architectural gem was the first waste treatment facility in Boston.

This 1960s kinetic artwork has been restored and is once again whirling away in downtown Minneapolis.

A golden egg-shaped sauna in the Arctic tundra.

The romantic botanic tunnel feels like a well-kept secret.

To find the "unicorns of the deep" you've got to go downstairs.

You can spend the night as an honorary lighthouse keeper in this quaint, historic beacon.

Burbling away in refrigerators are 105 sourdough starters from around the world.

This fairytale-like structure is the last turf church ever constructed in Iceland.

Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.

A Florida college boasts the world's largest single-site collection of structures designed by Frank Lloyd Wright.

Hundreds of drawings left by the land's previous inhabitants remain mysterious.

Settled by the Church of Jesus Christ of Latter-day Saints in 1859, this abandoned frontier town has appeared in several films.

Stand at the center of this lakefront sundial, and you'll become part of the timepiece.

This remarkable collection devoted to the study of fish includes 1 million preserved specimens from all around the world.

The last street in Pittsburgh that's paved with wood.

Largest collection of mounted dinosaur specimens in the world.