The sign at the garden gate reads: "These Plants Can Kill."

This unreal Portuguese palace looks as though it's made from a pile of different castles.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

A hands-on traveling collection of the innovative devices of yesteryear.

800 apricot trees honor Silicon Valley's agricultural history.

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

Money made from smuggling sugar helped create this wondrous rock maze in honor of the Prussian Queen Louise.

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

An artsy hidden staircase leads to breathtaking views of San Francisco.

An old world fairytale-land with over 350 fairy folk figurines hidden amongst 800 year old cedars.

This charmingly homemade amusement park has been growing for 40 years.

Rebuilt remains of a temple to Roman god Mithras.

One man's eclectic collection of treasures found at sea.

A glimpse into the "Logging Capital of the World" at a time when there was far more forest and far less machinery.

A surreal landscape where fanged rocks rise from the ground and the ocean feels like a great mystery.

Shoreline strewn with the remains of ghostly fallen trees.

This small-town Connecticut restaurant gives each diner a free book from its vast library.

Once a year, a sandbar rises from the depths just in time for the world's weirdest match.

The country's oldest continually-operated mini golf course lies hidden in plain sight, eclipsed by one of D.C.'s most popular tourist attractions.

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

This home on a quiet suburban street is completely covered with vibrant mosaics.

The oldest residential street in Europe also features an optical illusion.

The largest greenhouse in the world is home to over one million types of plants.

Village situated on a narrow volcanic escarpment.