The longest living non-clonal organisms on Earth.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

A winding path built in secret on the edge of the continent.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

The Empire Mine is "one of the oldest, largest, deepest, longest and richest gold mines in California."

A replica of the first public theater built in California.

The California capital city once stood 10 feet lower than it does today.

Hauntingly beautiful totem poles left by the Haida.

The highest pedestrian bridge in Singapore looks like a series of undulating waves rising between two public parks.

This chimerical bridge/tunnel appears to dead end right into the sea.

The northernmost point in Denmark is a turbulent sandbar created by two clashing seas.

This modernist tower was saved by a fraternity with a 500-year-old penchant for shooting at wooden parrots.

Dozens of musicians have planted trees in this Danish park, and donated songs to go with them.

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

The commemorative stone column conceals a secret laboratory.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

The site of the climactic scene from the classic horror film is now a historic landmark.

Created in 1972, the famous sculptor's intricately detailed monument to San Francisco is overflowing with city landmarks.

This penis-focused monastery is dedicated to Buddhism's "Divine Madman."

This colorful overpass is one of Bhutan's longest suspension bridges.

San Francisco's newly reopened hands-on science museum.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

It took 160 years to complete the most ornate church in Ecuador.

The world's tallest aluminum statue is also the world's tallest image of a winged Virgin Mary.