The remains of a ruined mansion memorialize the 1906 earthquake.

A monumental cross hides in the trees in Golden Gate Park.

Barely visible foundations remain where Stow Lake’s “observatory” once welcomed visitors.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

Golden Gate Park's historic collection of plants.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

This turn of the century masterpiece has a mysterious goaty interloper.

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

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

This private residence was the template for one of the most beloved television homes of all time.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

Open day and night, a church with three pews and Bibles.

The ghostly remains of what was once the world's richest copper mine.

Four-story concrete hotel never opened to customers.

Twenty churches beautifully painted by 19th-century Czech and German immigrants in Texas.

A 131-year-old wunderkammer of Texas history.

A National Historic Landmark with a scenic clock tower and park filled with deer and peacocks, plus a military museum.

The 40-foot-tall votive candle is the largest of its kind.

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

A historic freight system that found the true gold rush is in tourism.

Buy your friend a drink or staple some cash to the wall for the next guy at the Salty Dawg Saloon.

This Alaska library may be the only one in the country that allows you to check out pieces of taxidermy.

This WWII-era military installation once held an entire city within its walls - now, its walls are falling down.