A botanic garden full of trees twisted into fantastic shapes and positions.

Rising out of miles of farmland, these buttes are sometimes called the world's smallest mountain range.

A subterranean house of worship carved right out of the bedrock.

This micro-nation may be some sort of prank, but its constitution sure seems official.

A hard-to-reach oasis in a desolate corner of Death Valley National Park.

Originally envisioned by King Ludwig II to rival Versailles, Herrenchiemsee's "New Palace" remains half-gilded for lack of funds.

American soldiers discovered Europe's best one-liner at the end of World War II.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

The prototype for all Nazi concentration camps.

A striking 12th-century-style castle built on the edge of a cliff.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

An underground city of salt.

In the remote high desert of New Mexico, a strange array of poles beckon fury from above.

This Belgian palace was long the domain of priests and aristocrats but is now being turned into an art commune.

A maze of crosses marks the jumbled divide between the Netherlands and Belgium.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

This castle ruin in the middle of nowhere is a gem for wildlife enthusiasts.

A thin pane of glass keeps visitors from sliding off this futuristic skywalk.

A Viking-style brewpub named for a Norse sea giant, in the heart of fjord country.

Longest road tunnel in the world features an air treatment plant and the illusion of daylight.

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

The unbelievably opulent home built for an infamous newspaperman.

Successful artist residence program has filled this ranch with dozens of sculptures over the years.