Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

The highest point in Washington state is a volcano covered in glaciers.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Avoid gangster interaction while window-shopping.

Pilgrimage site for star-crossed lovers.

A massive sea stack famous for its appearance in The Goonies.

Breathtaking and huge 430 year old maps of Italy.

The most confusing clock in New York.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

Cold war icon and onetime "hole" in the iron curtain.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

Go inside to really appreciate this 500-year-old technological masterpiece.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

A wall of chewing gum moonlights as collective art.

An exotic wildlife habitat right off The Strip.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

One of two side-by-side totem pole parks dedicated to educating visitors on Tlingit history and culture.

A classic gold rush hotel can be expected to pick up some ghosts along the way, and the Golden North is no exception.

Upside-down trees serve as natural flower pots in this hanging garden of Alaska.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.