The Roman Emperor's lost summer home and grotto full of enormous sculptures sit along the Italian seashore.

This twice-relocated "Usonian" home is among the smallest built by master architect Frank Lloyd Wright.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

According to local legends, the shallow sandbar that allows visitors to walk across Orhaniye Bay has a tragic backstory.

Amidst medieval and baroque buildings, five human-sized gherkins stand tall.

A lonely memorial to the Challenger Space Shuttle, honoring the astronauts who died in 1986.

More than 450 years ago, an Italian nun became the first woman to paint the iconic subject.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

A breathtaking 19th-century trail overlooks Lake Tahoe.

Norway has built what may be the world's most beautiful public toilet.

A limestone sculpture of a praying man resides over the site where 23 Chinese cockle pickers died.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

Eat your Big Mac in a DC-3.

Described by William Wordsworth as a "World of Wonder."

This lighthouse was crafted as penitence for the theft of wine bound for a monastery.

The house in the middle of the motorway.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

This one-of-a-kind Roman arch is not actually dedicated to the god Janus.

A tunnel with windows, so you don't miss out on the impressive views.

A giant Troll lurks under one of Seattle's oldest bridges.

Inside this church is an obscure piece of art carved by the famous Alice Liddell.

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

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.