This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

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

Shortest overhead power line in the world.

Portugal's National Pantheon has a history of curses, collapses and financial problems.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A scale rocket of an Ariane 5 rocket serves as a monument to a pioneer of space science.

This charming candle shop has been in business since 1789.

Hidden beneath a beautiful overlook you’ll find the history of the city depicted in comic strip format next to a pay toilet.

One of the smallest bookstores on the planet.

A garden in Lisbon filled with giant porcelain creatures.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

An underexplored, 130-foot tropical waterfall that you will have all to yourself.

This cascade of mineral-rich hot springs and waterfalls is an oasis in the Jordanian desert.

Once part of an ancient international harbor, it's now an all-you-can-eat shrimp buffet for flamingos and other water birds.

Bioluminescence in the reefs of the Maldives causes the sea to glow like a starry night sky.

Every half hour the eye-rolling clock face sticks out its tongue to mock the good citizens of Koblenz.

It's good luck to be mocked by this monkey.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

A German apartment building hosting as many trees as human occupants.

Crop circles inspired this whimsical garden in Germany.

A rare chance to ride one of the few continuous elevators still in operation.

This German fountain of a legendary apple wine-loving drink thief will spit on you.

This unique exhibit "Dialogue in the Dark" reverses roles as the visionless become guides and the sighted become ‘blind.’

Made from trees and then abandoned, this fence is still growing along a path in Germany.