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

This park contains one of the largest concentrations of cedar glades, a unique and rare ecosystem.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

Commonly acknowledged as the only public monument to the Devil himself.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Lines from a walking song are etched into a rock in Natural Bridge State Park.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

One of the earliest and best-preserved buildings in Charles County, Maryland.

Home of the physician who set the leg of John Wilkes Booth after the Lincoln assassination.

This methodist cemetery is slowly receding into the wilderness along a Maryland highway.

These roaring primates were considered a divine creature in the cosmology of the Maya.

Monkeys inhabit the lush forest surrounding ancient Mayan ruins once considered sacred.

Deep in the Guatemalan jungle stands an ancient pyramid that once marked the reign of a king.

The remnants of an archaeological camp stand within Tikal National Park.

A massive underwater sinkhole made famous by Jacques Cousteau.

A strangely angled West Village home is the only monument to an explosion that took the lives of three American revolutionaries.

A DIY art gallery/music venue/lecture hall dedicated to video game culture.

An artist's cute bronze subway sculptures belie his violent artistic past.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

A quiet and contemplative oasis in the middle of New York's bustle and riot.